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black oil |
Also found in: Wikipedia | 0.02 sec. |
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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. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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