问题描述：
[单选]
Sediment collects in a tubular purifier（）．
A．on top cover
B．on sides of bowl
C．in drain line on the discs
D．on the disc
参考答案：查看无
答案解析：无
☆收藏
答案解析：无
☆收藏
上一篇：Shims of different thicknesses are inserted between the shells to enable adjustment of（）．
下一篇：Sea water is not directly used as a coolant for engines because of its（）．
- 我要回答: 网友(216.73.216.136)
- 热门题目: 1.中机舱的优缺点是什么？ 2.为什么中小船舶不采用汽轮机动 3.“轮机”一词的含义是怎样演变