“natural bitumen”的概念、定义、翻译、参考文献-科学参考

单词	natural bitumen
释义	natural bitumen [`nach·rǝl bǝ`tü·mǝn] ^GEOLOGY Native mineral pitch, tar, or asphalt.
随便看	exhumation exhumed exine exinite existence doubtful existential psychiatry existential quantifier exit exite exit pupil exit region ex lighterage exline correction exmeridian altitude exmeridian observation exo- exobiology exocarp exoccipital exochorion exocline exocoel Exocoetidae exocrine gland exocuticle

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