“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	pipe thread pipe-thread protector pipe tongs pipe-to-soil potential pipe train pipe vesicle pipework pipe wrench Pipidea piping pipkrake pi point pipper pipper image Pipridae piptoblast piquite piqué piracy Pirani gage pirep piriform piriformis pirimiphosethyl Piroplasmea

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