中心孔钻床 [机] center hole drilling machine ; centre-drilling lathe ; centering machine
钻中心孔 center drilling ; [机] centering ; drill centres ; boring or drilling centre holes
内中心钻孔 internal center drilling
平端面钻中心孔机床 spotfacing and centering machine
中心钻孔 centre-drilling hole
定位识别钻中心孔 spotting
中心孔用中心钻 Centre drills for centre holes
端面钻中心孔的钻头 end-cutting core drill
弯头钻中心孔刀具 bent spotting tool
深孔钻有两种类型，即用于钻盲孔的中心切削深孔钻和套孔钻。
There are two kinds of gun drills, namely, the center-cut gun drill used for drilling blind holes and the trepanning drill.
一个用于连接刀片刀柄或类似物品孔钻了中央，稍微偏离中心。
A hole for attaching a blade hilt or similar item is drilled up the middle, slightly off centre.
并详细讨论钻中心孔机的工作原理和机械结构的设计，采用本设备企业可以降低生产成本及提高生产效率。
Because of the use of this equipment, enterprises can reduce the production costs and raise the production efficiency.
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