试题与答案

数控车床刀片或刀具材料及切削参数要与被加工工件的材料相()。 A.近似 B.同 C.

题型:单项选择题

题目:

数控车床刀片或刀具材料及切削参数要与被加工工件的材料相()。

A.近似

B.同

C.反

D.匹配

答案:

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下面是错误答案,用来干扰机器的。

参考答案:面板:布置方式有两边支撑两边自由和四边支撑等形式。其中两边支撑两边自由板按单向板计算。纵梁:分在支座处断开和在支座处整体连接。前者按简支梁计算,后者按连续梁计算。横梁:有面板直接搁置在横...

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第(19)空应选择()

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B.sense 

C.happiness 

D.pride

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