“Hooper jig”的概念、定义、翻译、参考文献-科学参考

单词	Hooper jig
释义	Hooper jig [`hüp·ǝr ´jig] ^{MINING ENGINEERING} A pneumatic jig, used when water is scarce or the ore must be kept dry, to concentrate values from sands.
随便看	comminutor commissioned commission ore commissure commissurotomy commitment committed common area common-base connection common-base feedback oscillator common battery common bile duct common bond common branch common brick common business-oriented language common carotid artery common carriage common carrier common cause common-channel interoffice signaling common cold common-collector connection common control unit common declaration statement

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