其它

在钻床上依次对同一孔进行钻、扩、铰加工时,通常使用() () is usually used when drilling, expanding and reaming the same hole in turn on the drilling machine.A.快换钻套 Quick change drill bushingB.可换钻套 Replaceable drill bushingC..固定钻套 Fixed drill bushingD.特殊钻套 Special drill bushing

题目

在钻床上依次对同一孔进行钻、扩、铰加工时,通常使用() () is usually used when drilling, expanding and reaming the same hole in turn on the drilling machine.

A.快换钻套 Quick change drill bushing

B.可换钻套 Replaceable drill bushing

C..固定钻套 Fixed drill bushing

D.特殊钻套 Special drill bushing

参考答案和解析
快换钻套
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