<li id="mq5ou"></li>

<span id="mq5ou"></span>

單項(xiàng)選擇題

Scale accumulation on evaporator heat exchange surfaces （）.

A.increases brine density
B.increases distillate salinity
C.reduces metal corrosion
D.reduces heat transfer

你可能感興趣的試題

單項(xiàng)選擇題

In order to properly remove air from the casing of a centrifugal pump when starting, the pump should have a （）.

A.positive head
B.negative suction head
C.mechanical seal
D.vent valve attached to the casing at the top of the volute

單項(xiàng)選擇題

The valve best suited for throttling gas or liquid flow in a pipeline is the（）.

A.gate valve
B.globe valve
C.check valve
D.plug cock

感谢您访问我们的网站，您可能还对以下资源感兴趣：

国产黄色视屏

视频一区二区无码制服师生国产三级香港三级人妇国产码一区二区在线观看国产伦精品一区二区三区免费观看