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data-event-name="pinnable-header.vector-main-menu.pin">vii külgpaanile</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">peida</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navigeerimine </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Vikipeedia:Esileht" title="Mine esilehele [z]" accesskey="z"><span>Esileht</span></a></li><li id="n-generaldiscussion" class="mw-list-item"><a href="/wiki/Vikipeedia:%C3%9Cldine_arutelu"><span>Üldine arutelu</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Eri:Viimased_muudatused" title="Vikis tehtud viimaste muudatuste loend [r]" accesskey="r"><span>Viimased muudatused</span></a></li><li id="n-randompage" class="mw-list-item"><a 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class="mw-list-item"><a href="/w/index.php?title=Pleokroism&printable=yes" title="Selle lehe trükiversioon [p]" accesskey="p"><span>Prinditav versioon</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Vikipeedia:Esileht" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Vikipeedia" src="/static/images/mobile/copyright/wikipedia-wordmark-et.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="" src="/static/images/mobile/copyright/wikipedia-tagline-et.svg" width="120" height="14" style="width: 7.5em; height: 0.875em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a 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Saadaval 38 keeles" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-38" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">38 keelt</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Pleochro%C3%AFsme" title="Pleochroïsme – afrikaani" lang="af" hreflang="af" data-title="Pleochroïsme" data-language-autonym="Afrikaans" data-language-local-name="afrikaani" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%AA%D8%BA%D9%8A%D8%B1_%D9%84%D9%88%D9%86%D9%8A" title="تغير لوني – araabia" lang="ar" hreflang="ar" data-title="تغير لوني" data-language-autonym="العربية" data-language-local-name="araabia" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Pleokroisme" title="Pleokroisme – indoneesia" lang="id" hreflang="id" data-title="Pleokroisme" data-language-autonym="Bahasa Indonesia" data-language-local-name="indoneesia" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9F%D0%BB%D0%B5%D0%BE%D1%85%D1%80%D0%BE%D0%B8%D0%B7%D1%8A%D0%BC" title="Плеохроизъм – bulgaaria" lang="bg" hreflang="bg" data-title="Плеохроизъм" data-language-autonym="Български" data-language-local-name="bulgaaria" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Pleocroisme" title="Pleocroisme – katalaani" lang="ca" hreflang="ca" data-title="Pleocroisme" data-language-autonym="Català" data-language-local-name="katalaani" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-de badge-Q70894304 mw-list-item" title=""><a href="https://de.wikipedia.org/wiki/Pleochroismus" title="Pleochroismus – saksa" lang="de" hreflang="de" data-title="Pleochroismus" data-language-autonym="Deutsch" data-language-local-name="saksa" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A0%CE%BB%CE%B5%CE%BF%CF%87%CF%81%CF%89%CE%B9%CF%83%CE%BC%CF%8C%CF%82" title="Πλεοχρωισμός – kreeka" lang="el" hreflang="el" data-title="Πλεοχρωισμός" data-language-autonym="Ελληνικά" data-language-local-name="kreeka" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Pleochroism" title="Pleochroism – inglise" lang="en" hreflang="en" data-title="Pleochroism" data-language-autonym="English" data-language-local-name="inglise" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Pleocro%C3%ADsmo" title="Pleocroísmo – hispaania" lang="es" hreflang="es" data-title="Pleocroísmo" data-language-autonym="Español" data-language-local-name="hispaania" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Pleokroismo" title="Pleokroismo – baski" lang="eu" hreflang="eu" data-title="Pleokroismo" data-language-autonym="Euskara" data-language-local-name="baski" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%DA%86%D9%86%D8%AF%D8%B1%D9%86%DA%AF%E2%80%8C%D9%86%D9%85%D8%A7%DB%8C%DB%8C" title="چندرنگ‌نمایی – pärsia" lang="fa" hreflang="fa" data-title="چندرنگ‌نمایی" data-language-autonym="فارسی" data-language-local-name="pärsia" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Pl%C3%A9ochro%C3%AFsme" title="Pléochroïsme – prantsuse" lang="fr" hreflang="fr" data-title="Pléochroïsme" data-language-autonym="Français" data-language-local-name="prantsuse" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%8B%A4%EC%83%89%EC%84%B1" title="다색성 – korea" lang="ko" hreflang="ko" data-title="다색성" data-language-autonym="한국어" data-language-local-name="korea" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8A%D5%AC%D5%A5%D5%B8%D6%84%D6%80%D5%B8%D5%AB%D5%A6%D5%B4" title="Պլեոքրոիզմ – armeenia" lang="hy" hreflang="hy" data-title="Պլեոքրոիզմ" data-language-autonym="Հայերեն" data-language-local-name="armeenia" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Pleokroizam" title="Pleokroizam – horvaadi" lang="hr" hreflang="hr" data-title="Pleokroizam" data-language-autonym="Hrvatski" data-language-local-name="horvaadi" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Pleocroismo" title="Pleocroismo – itaalia" lang="it" hreflang="it" data-title="Pleocroismo" data-language-autonym="Italiano" data-language-local-name="itaalia" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A4%D7%9C%D7%90%D7%95%D7%9B%D7%A8%D7%95%D7%90%D7%99%D7%96%D7%9D" title="פלאוכרואיזם – heebrea" lang="he" hreflang="he" data-title="פלאוכרואיזם" data-language-autonym="עברית" data-language-local-name="heebrea" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9F%D0%BB%D0%B5%D0%BE%D1%85%D1%80%D0%BE%D0%B8%D0%B7%D0%BC" title="Плеохроизм – kasahhi" lang="kk" hreflang="kk" data-title="Плеохроизм" data-language-autonym="Қазақша" data-language-local-name="kasahhi" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9F%D0%BB%D0%B5%D0%BE%D1%85%D1%80%D0%BE%D0%B8%D0%B7%D0%BC" title="Плеохроизм – kirgiisi" lang="ky" hreflang="ky" data-title="Плеохроизм" data-language-autonym="Кыргызча" data-language-local-name="kirgiisi" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Pleohroisms" title="Pleohroisms – läti" lang="lv" hreflang="lv" data-title="Pleohroisms" data-language-autonym="Latviešu" data-language-local-name="läti" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Pleokroizmus" title="Pleokroizmus – ungari" lang="hu" hreflang="hu" data-title="Pleokroizmus" data-language-autonym="Magyar" data-language-local-name="ungari" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%9F%E0%B5%8D%E0%B4%B0%E0%B5%88%E0%B4%95%E0%B5%8D%E0%B4%95%E0%B5%8D%E0%B4%B0%E0%B5%8B%E0%B4%AF%E0%B4%BF%E0%B4%B8%E0%B4%82" title="ട്രൈക്ക്രോയിസം – malajalami" lang="ml" hreflang="ml" data-title="ട്രൈക്ക്രോയിസം" data-language-autonym="മലയാളം" data-language-local-name="malajalami" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Pleochro%C3%AFsme" title="Pleochroïsme – hollandi" lang="nl" hreflang="nl" data-title="Pleochroïsme" data-language-autonym="Nederlands" data-language-local-name="hollandi" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E5%A4%9A%E8%89%B2%E6%80%A7" title="多色性 – jaapani" lang="ja" hreflang="ja" data-title="多色性" data-language-autonym="日本語" data-language-local-name="jaapani" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Pleokroisme" title="Pleokroisme – uusnorra" lang="nn" hreflang="nn" data-title="Pleokroisme" data-language-autonym="Norsk nynorsk" data-language-local-name="uusnorra" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Pleoxroizm" title="Pleoxroizm – usbeki" lang="uz" hreflang="uz" data-title="Pleoxroizm" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="usbeki" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Pleochroismus" title="Pleochroismus – alamsaksa" lang="nds" hreflang="nds" data-title="Pleochroismus" data-language-autonym="Plattdüütsch" data-language-local-name="alamsaksa" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Pleochroizm" title="Pleochroizm – poola" lang="pl" hreflang="pl" data-title="Pleochroizm" data-language-autonym="Polski" data-language-local-name="poola" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Pleocro%C3%ADsmo" title="Pleocroísmo – portugali" lang="pt" hreflang="pt" data-title="Pleocroísmo" data-language-autonym="Português" data-language-local-name="portugali" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Pleocroism" title="Pleocroism – rumeenia" lang="ro" hreflang="ro" data-title="Pleocroism" data-language-autonym="Română" data-language-local-name="rumeenia" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9F%D0%BB%D0%B5%D0%BE%D1%85%D1%80%D0%BE%D0%B8%D0%B7%D0%BC" title="Плеохроизм – vene" lang="ru" hreflang="ru" data-title="Плеохроизм" data-language-autonym="Русский" data-language-local-name="vene" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Pleohroizem" title="Pleohroizem – sloveeni" lang="sl" hreflang="sl" data-title="Pleohroizem" data-language-autonym="Slovenščina" data-language-local-name="sloveeni" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9F%D0%BB%D0%B5%D0%BE%D1%85%D1%80%D0%BE%D0%B8%D0%B7%D0%B0%D0%BC" title="Плеохроизам – serbia" lang="sr" hreflang="sr" data-title="Плеохроизам" 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src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Biotite_cordierite_gneiss_pmg_ss_pp_0%2C8_2007.jpg/220px-Biotite_cordierite_gneiss_pmg_ss_pp_0%2C8_2007.jpg" decoding="async" width="220" height="147" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Biotite_cordierite_gneiss_pmg_ss_pp_0%2C8_2007.jpg/330px-Biotite_cordierite_gneiss_pmg_ss_pp_0%2C8_2007.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Biotite_cordierite_gneiss_pmg_ss_pp_0%2C8_2007.jpg/440px-Biotite_cordierite_gneiss_pmg_ss_pp_0%2C8_2007.jpg 2x" data-file-width="800" data-file-height="533" /></a><figcaption>Mikroskoobi aluslaua pööramisel muutub biotiidi värvus sujuvalt helepruunist tumepruunini (vasakul ja paremal all nurgas).</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fail:Dark_crown.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/77/Dark_crown.JPG/220px-Dark_crown.JPG" decoding="async" width="220" height="147" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/77/Dark_crown.JPG/330px-Dark_crown.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/77/Dark_crown.JPG/440px-Dark_crown.JPG 2x" data-file-width="3456" data-file-height="2304" /></a><figcaption>", 1 mm</figcaption></figure> <p><b>Pleokroism</b> on mõne <a href="/wiki/Anisotroopsus" class="mw-redirect" title="Anisotroopsus">anisotroopse</a> <a href="/wiki/Mineraal" title="Mineraal">mineraali</a> omadus muuta <a href="/wiki/V%C3%A4rvus" title="Värvus">värvust</a> sõltuvalt <a href="/w/index.php?title=Kristallograafiline_telg&action=edit&redlink=1" class="new" title="Kristallograafiline telg (pole veel kirjutatud)">kristallograafiliste telgede</a> orientatsioonist ehk teisisõnu vaatenurgast. </p><p><a href="/wiki/Kivimit_moodustavad_mineraalid" title="Kivimit moodustavad mineraalid">Kivimit moodustavaist mineraalidest</a> on tugev pleokroism näiteks <a href="/wiki/Biotiit" title="Biotiit">biotiidil</a> ja <a href="/wiki/K%C3%BC%C3%BCnekivi" title="Küünekivi">küünekivil</a>. Pleokroeeruvaid mineraale nimetatakse <a href="/wiki/V%C3%A4rviline_mineraal" class="mw-redirect" title="Värviline mineraal">värvilisteks mineraalideks</a>. </p><p>Pleokroismi põhjustab <a href="/wiki/Valgus" title="Valgus">valguse</a> <a href="/wiki/Kaksikmurdumine" title="Kaksikmurdumine">kaksikmurdumine</a> mineraalis. Erineva <a href="/wiki/Polarisatsioon" title="Polarisatsioon">polarisatsiooniga</a> valgus murdub <a href="/wiki/Kristall" title="Kristall">kristallis</a> erineva <a href="/wiki/Nurk" title="Nurk">nurga</a> võrra ja sellepärast liigub läbi kristalli isesugust teed mööda. Jagunenud valguskiire osad liiguvad mineraalis erinevat teed mööda ja erineva kiirusega ning igal teel <a href="/wiki/Valguse_neeldumine" title="Valguse neeldumine">neelduvad</a> ise värvi <a href="/wiki/Footon" title="Footon">footonid</a>. Kui mineraali vaadata kindla nurga alt, siis on näha valguskiired, mis on läbinud kindla teede kombinatsiooni, igale teele vastab kindel polarisatsioon ja kindlad neeldunud värvid. Kui vaadata sama mineraali teise nurga alt, on näha teistsugused teed läbinud valguskiired teistsuguse polarisatsiooni ja teistsuguste neeldunud värvidega. See tekitabki mulje, et mineraali värv sõltub sellest, missuguse nurga alt teda vaadata. </p><p><a href="/wiki/Trigonaalne_s%C3%BCngoonia" title="Trigonaalne süngoonia">Trigonaalse</a>, <a href="/wiki/Tetragonaalne_s%C3%BCngoonia" title="Tetragonaalne süngoonia">tetragonaalse</a> ja <a href="/wiki/Heksagonaalne_s%C3%BCngoonia" title="Heksagonaalne süngoonia">heksagonaalse süngooniaga</a> mineraalid saavad olla ainult kahevärvilised ning seda nimetatakse <a href="/w/index.php?title=Dikroism&action=edit&redlink=1" class="new" title="Dikroism (pole veel kirjutatud)">dikroismiks</a>. <a href="/wiki/Monokliinne_s%C3%BCngoonia" title="Monokliinne süngoonia">Monokliinse</a>, <a href="/wiki/Trikliinne_s%C3%BCngoonia" title="Trikliinne süngoonia">trikliinse</a> ja <a href="/wiki/Rombiline_s%C3%BCngoonia" title="Rombiline süngoonia">rombilise süngooniaga</a> mineraalid saavad olla kolmevärvilised ja seda nimetatakse <a href="/w/index.php?title=Trikroism&action=edit&redlink=1" class="new" title="Trikroism (pole veel kirjutatud)">trikroismiks</a>. <a href="/w/index.php?title=Isomeetriline_mineraal&action=edit&redlink=1" class="new" title="Isomeetriline mineraal (pole veel kirjutatud)">Isomeetrilistel mineraalidel</a> pleokroismi ei esine. </p><p>Pleokroismi arvestatakse <a href="/wiki/V%C3%A4%C3%A4riskivi" title="Vääriskivi">vääriskivide</a> valmistamisel. Mõnda neist lõigatakse ja lihvitakse nii, et pleokroismi rõhutada, teist, vastupidi, nii, et seda varjata. See sõltub muu hulgas nende värvide meeldivusest. </p><p>Pleokroism on hea diagnostiline tunnus mineraali <a href="/wiki/Polarisatsioonimikroskoop" title="Polarisatsioonimikroskoop">mikroskoopilisel</a> määramisel, sest sageli on muus osas sarnastel mineraalidel erinev pleokroismi värvigamma. Sellisel juhul uuritakse mineraali <a href="/wiki/%C3%95hik" title="Õhik">õhikut</a> polariseerunud valguses mikroskoobi abil. </p>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Pärit leheküljelt "<a dir="ltr" href="https://et.wikipedia.org/w/index.php?title=Pleokroism&oldid=6393796">https://et.wikipedia.org/w/index.php?title=Pleokroism&oldid=6393796</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Eri:Kategooriad" title="Eri:Kategooriad">Kategooriad</a>: <ul><li><a href="/wiki/Kategooria:Mineraloogia" title="Kategooria:Mineraloogia">Mineraloogia</a></li><li><a href="/wiki/Kategooria:Kristallooptika" title="Kategooria:Kristallooptika">Kristallooptika</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Selle lehekülje viimane muutmine: 20:27, 3. mai 2023.</li> <li id="footer-info-copyright">Tekst on kasutatav vastavalt Creative Commonsi litsentsile "<a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.et">Autorile viitamine + jagamine samadel tingimustel</a>"; sellele võivad lisanduda täiendavad tingimused. 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