centre bore
美 [ˈsentər bɔːr]英 [ˈsentə(r) bɔː(r)]
- 中心孔
centre bore-
The drill rod was designed not rotative , and the piston can turn around along with the chuck fixed on the spindle , so relative rotational movement between them takes place when the lathe runs , and the centre bore drilling was effected .
由于钻杆自身不旋转，而工件被夹持在液压卡盘上随主轴一起旋转，中心孔钻相对工件产生相对旋转运动，从而实现钻削功能。
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Design of centre bore hitting machine
钻中心孔机的设计
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Design of the Device Built in the Spindle of the Lathe for Piston Centre Bore Drilling
内置于车床主轴孔内的活塞打中心孔装置设计
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