正确答案: D

bearing ca

题目：A main bearing consists of two shells which are secured by means of studs and （）.

查看原题 查看所有试题

学习资料的答案和解析：

[单选题]采用尺寸选配法修理柱塞偶件或针阀偶件时，下列正确说法是（）。

C．两个零件分别加工消除其几何形状误差

[单选题]It is very important that each cylinder should be （） scavenged before the charged air is compressed.

respectively