问题描述：
[单选]
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？
A．main bearing shells
B．main bearing
C．steel
D．bearing metal
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 bearing shells often have a thin（）of lead or indium to provide a layer giving protection against corrosion．
下一篇：The main bearing metal is a lining（）．
- 我要回答: 网友(18.189.194.225)
- 热门题目: 1.位于喷油泵和高压油管之间的出 2.在检查和调整主机回油阀调节式 3.在检查主机回油阀调节式喷油泵