英语词汇“protobitumen”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	protobitumen
释义	protobitumen protobitumen [¦prōd·ō·bə′tü·mən] (materials) Any of the fats, oils, waxes, or resins which are present as unaltered or nearly unaltered plant and animal products from which fossil bitumens are formed.
随便看	irrupt irrupted irrupting irruption irruptions irruptive irruptive growth irruptively irrupts irrv irrwpb irrx irrésistible irréversible i&rs irs irs-1 irs1 irs-1b irs-1 ph domain-binding protein irs-2 irs2 irs3l irs-5 irs5

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