问题描述：
[单选]
The cylinder liners are made of（）and the cylinder surfaces are sometimes chromium-plated．
A．steel
B．copper
C．cast iron
D．stainless steel
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 cylinders， with cooling jackets， are（）to the engine frame by eight tie rods．
下一篇：The cylinder is fitted with internal liner so that a water space is left（）the liner and the outer wall．
- 我要回答: 网友(3.134.78.192)
- 热门题目: 1.可靠性在船舶动力装置质量指标 2.船舶每海里燃油消耗量指标考虑 3.已知某船排水量为2OOO0t