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

<ruby id="z5pey"><xmp id="z5pey"></xmp></ruby>

<pre id="z5pey"><strong id="z5pey"></strong></pre><ins id="z5pey"><xmp id="z5pey"></xmp></ins>

<dl id="z5pey"></dl>

單項(xiàng)選擇題

Under tropical conditions, control valves have fully opened, but the room still hot.What measures can be taken in such a case?（）

A.Keep the plant running all time
B.Start another blower
C.Increase the ratio of circulated to fresh air
D.Reduce the seawater flow to the condenser

你可能感興趣的試題

單項(xiàng)選擇題

Under normal conditions, the quantity of air circulation becomes less and less.What is the reason?（）

A.dirty delivery ducts
B.too much refrigerant
C.the fouling filters
D.high temperature outside

單項(xiàng)選擇題

（）is used in typical marine pattern self-contained unit.

A.a water cooled condenser
B.a slop tank
C.a expansion tank
D.a centrifugal pump

<pre id="5q2wp"><strong id="5q2wp"></strong></pre>

<ins id="5q2wp"></ins>