“black oil”的概念、定义、翻译、参考文献-科学参考

单词	black oil
释义	black oil [¦blak `ȯil] ^MATERIALS Low-grade, black petroleum oil used to lubricate slow-moving or rough-surfaced machinery where high-grade lubricants are impractical or too expensive.
随便看	particle track particle trap particle velocity parti-colored buoy particular integral particular solution particulate composite particulate mass analyzer particulate matter particulates particulate solid parting parting agent parting cast parting compound parting line parting lineation parting plane lineation parting sand parting-step lineation parting stop parting tool partition partition chromatography partition coefficient

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