问题描述：
[单选]
The essential part of the diesel engine， whose function is to convert the heat energy into the mechanical power， is the（）．
A．crankshaft
B．piston
C．connecting rod
D．bearing
参考答案：查看无
答案解析：无
☆收藏
答案解析：无
☆收藏
上一篇：As to the piston cooling， of the following， which statement is not true？
下一篇：Among the main propulsion units on board the ship with the same capacity， the lightest one is（）．
- 我要回答: 网友(216.73.216.29)
- 热门题目: 1.船舶在营运中，动力装置的维护 2.可靠性对船舶动力装置具有特别 3.对商船动力装置的基本要求是（