正确答案: C
compression ratio
题目:A distance piece, with ground faces, known as a compression plate, may be interposed between the rod and the beating housing, its thickness being chosen to ensure the correct ().
查看原题 查看所有试题
学习资料的答案和解析:
[单选题]早期故障是在使用开始后,因为()而产生的故障。Ⅰ.设计与制造缺陷;Ⅱ.磨合不当;Ⅲ.维修不当
Ⅰ+Ⅱ
[单选题]气缸盖是柴油机的()和燃烧室的组成部分。
固定件
[单选题]偏移反映了两相邻轴轴心线呈()的状态。
平行
[单选题]检验发现轴系的同轴度不符合要求,为了调整轴系状态,可采用()的修理方案。Ⅰ.调节第一道中间轴承位置;Ⅱ.调节各道中间轴承位置;Ⅲ.偏心镗削艉轴承;Ⅳ.改变主机位置;Ⅴ.改变局部中间轴承位置。
Ⅲ+Ⅳ
[单选题]桦木层压胶木是铁梨木的代用材料,具有材质致密、坚硬、耐热、绝缘性好、成材率高,缺点是()。Ⅰ.耐磨性差;Ⅱ.耐蚀性差;Ⅲ.耐水浸性差;Ⅳ.刚性差;Ⅴ.脆性大。
Ⅰ+Ⅴ
[单选题]The conclusion that mechanical efficiency is always () 100 percent is correct.
less tha
[单选题]The procedures recommended for auxiliary boilers having high salinity include ().
securing the boiler and giving it a blowing down
[单选题]High diesel engine cooling water temperatures can be caused by ().
all of the above