“swab”的概念、定义、翻译、参考文献-科学参考

单词	swab
释义	swab [swäb] ^{MINING ENGINEERING} 1. A pistonlike device provided with a rubber cap ring that is used to clean out debris inside a borehole or casing. 2. The act of cleaning the inside of a tubular object with a swab. ^{PETROLEUM ENGINEERING} In petroleum drilling, to pull the drill string so rapidly that the drill mud is sucked up and overflows the collar of the borehole, thus leaving an undesirably empty borehole.
随便看	blooming blooming mill blooper blossom blossom-end rot blotch print blotter blotter model blotter press blotting paper blow blowback blowback gun blowball blowby blowcase blowdown blowdown line blowdown stack blowdown tunnel blowdown turbine blower blowhole blow in blowing

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