问题描述：
[单选]
The main bearing shells often have a thin（）of lead or indium to provide a layer giving protection against corrosion．
A．flange
B．flash
C．plate
D．sheet
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 main bearings are provided with thin-walled（）， lined with a copper-lead alloy．
下一篇：The main bearing shells are made of steel with a lining of bearing metal which may be white metal， copper-lead or aluminum-tin alloy What is the meaning of “which” in the sentence above？
- 我要回答: 网友(18.191.235.161)
- 热门题目: 1.活塞杆填料函安装在气缸底板中 2.字头销外圆表面的过度磨损常采 3.十字头销一般选用（）锻造而成