“knuckle man”的概念、定义、翻译、参考文献-科学参考

单词	knuckle man
释义	knuckle man [`nǝk·ǝl ´man] ^{MINING ENGINEERING} A worker who connects mine cars to and disconnects them from cables and also couples cars into trains.
随便看	filterable virus filter aid filter base filter bauxite filter bed filter cake filter-cake washing filter capacitor filter center filter choke filter cloth filter crystal filter design filter discrimination filtered-particle testing filtered radar data filtered stock filter factor filter feeder filter flask filter impedance compensator filtering filter leaf filter loss filter medium

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