“pitch opal”的概念、定义、翻译、参考文献-科学参考

单词	pitch opal
释义	pitch opal [`pich ´ō·pǝl] ^MINERALOGY A yellowish to brownish inferior quality of common opal displaying a luster resembling that of pitch.
随便看	heavy resin oil heavy section car heavy tank heavy water heavy-water reactor heavy weapon heazelwoodite Hebe hebephrenia Heberden-Rosenbach node Heberden's arthritis Heberden's node Hebraic granite Hebrovellidae hecatolite hectare hecto- hectocotylus hectogram hectoliter hectometer hectometric wave hectorite heddle hedenbergite

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