“hollow-rod churn drill”的概念、定义、翻译、参考文献-科学参考

单词	hollow-rod churn drill
释义	hollow-rod churn drill [`häl·ō ´räd `chǝrn ´dril] ^{MECHANICAL ENGINEERING} A churn drill with hollow rods instead of steel wire rope.
随便看	tincalconite tin chloride tin chromate tin crystals tincture tincture of iodine tin dichloride tin difluoride QBE Q branch QCD Q factor Q fever Q machine Q-machine plasma Q magnitude Q meter Q multiplier Q point QPRK QPSK qr QRS complex qr tr Q signal

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