“noncoring bit”的概念、定义、翻译、参考文献-科学参考

单词	noncoring bit
释义	noncoring bit [`nän´kȯr·iŋ `bit] ^ENGINEERING A general type of bit made in many shapes which does not produce a core and with which all the rock cut in a borehole is ejected as sludge; used mostly for blasthole drilling and in the unmineralized zones in a borehole where a core sample is not wanted. Also known as borehole bit; plug bit.
随便看	spread reflection spread spectrum transmission Sprengel pump sprig Sprigginidae spring springback spring balance spring bearings spring bolt spring box mold spring brass spring buffer spring calipers spring clip spring clock spring collet spring contact spring cotter spring coupling spring crust spring die spring equinox spring faucet spring gravimeter

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