问题描述：
[单选]
The cast iron guide-ways for（）are attached to the top section and seal off the crankcase．
A．the connecting rod
B．the cross-head
C．the piston rod
D．the air box
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 cleaned heated oil， after passing through the centrifuges， is to be pumped to a（）．
下一篇：The common method of applying oil to the cylinder walls is by means of small pump assembled in units， known as（）．
- 我要回答: 网友(216.73.216.130)
- 热门题目: 1.排气阀阀面磨损较轻时可进行（ 2.常见气阀的损伤有（）等。Ⅰ. 3.四冲程柴油机的进、排气阀和二