无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

單項(xiàng)選擇題

The separating effect of oil separator is not very good, the reason may be（）

A.too little seal water
B.improper gravity disc
C.oil discharging pump not working very well
D.low water level of the working water

你可能感興趣的試題

單項(xiàng)選擇題

When separating fuel oil in oil separator, the separating quantity is（） of the real quantity.

A.100%
B.80%
C.1/2
D.1/3

單項(xiàng)選擇題

When separating lube oil separator, the optimal separating quantity is（）of the rated quantity on name plate.

A.100%
B.1/2
C.1/5
D.1/3

<blockquote id="vfink"></blockquote><dd id="vfink"></dd>

<dl id="vfink"></dl>

<pre id="vfink"><strong id="vfink"></strong></pre>