“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	perhydro- perhydrous coal perianal perianth periapical cyst periappendicitis periapsis periarteritis periarteritis nodosa periastron periblast periblastula periblem periblinite pericardial pericardial cavity pericardial fluid pericardial organ pericarditis pericardium pericarp pericenter pericentric inversion pericholangitis perichondrium

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