<液压支架检修质量标准>规定:构件平面上出现的凹坑面积不得超过()cm2,深度不得超

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问题:

<液压支架检修质量标准>规定:构件平面上出现的凹坑面积不得超过()cm2,深度不得超过20mm。

A.50

B.80

C.100

考点:综采维修钳工综采维修钳工(综合练习)综采维修钳工(综合练习)题库
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