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gun-drill

查词链接:https://www.dute.org/dict/gun-drill复制链接
枪钻
查看英英释义
abstract:
Gun drills are straight fluted drills which allow cutting fluid (either compressed air or a suitable liquid) to be injected through the drill's hollow body to the cutting face. They are used for deep drilling—a depth-to-diameter ratio of 300:1 or more is possible.

网络释义
枪钻
枪钻
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* 以上查询结果来自于网络,仅供参考。
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