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单词 machine drill
释义

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machine drill
machine drill n.
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society > occupation and work > equipment > piercing or boring tools > [noun] > drill > power drills
steam drill1801
power drill1867
machine drill1869
1869 W. Gladden From Hub to Hudson 91 It not only serves to move the piston of the machine drill, but ventilates the tunnel.
1936 Economist 12 Oct. 714/1 While this may be possible with machine drills in development faces, it is difficult at the moment to see how such appliances could be used with mobile jackhammers in stoping.
extracted from machinen.
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更新时间:2024/12/23 8:57:13