问题描述：
[单选]
The position of the piston parts in relation to each other is secured by means of（）and a dowel pin in the crown．
A．bosses
B．through bolts
C．machine-turned recesses
D．long stud
参考答案：查看无
答案解析：无
☆收藏
答案解析：无
☆收藏
上一篇：The power generated in the turbine must（）that required by the compressor．
下一篇：The position of the interface between oil and water within the centrifuge is achieved by the use of（）．
- 我要回答: 网友(216.73.216.96)
- 热门题目: 1.为了满足船舶续航力的要求，船 2.水平装货的船舶，对机舱高度有 3.巨大型船舶对动力装置的重量和