问题描述:
[单选]
The pistons are cooled by oil supplied from the forced()system.
A.fresh water
B.sea water
C.lubrication
D.fuel oil
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 piston moves up and down, thus causing the rotational movement of the()
下一篇:The period when both inlet valves and exhaust valves are open is referred to as().
- 我要回答: 网友(3.138.137.25)
- 热门题目: 1.换新薄壁轴瓦时,()的操作是 2.欲将薄壁瓦自轴承座内盘出时, 3.厚壁瓦欲自轴承座内盘出时,应