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

<pre id="pobf6"><acronym id="pobf6"></acronym></pre>

單項(xiàng)選擇題

Refrigerant is circulated through a refrigeration system by the （）.

A.compressor
B.condenser
C.expansion valve
D.evaporator

你可能感興趣的試題

單項(xiàng)選擇題

The type of gauge most commonly used to measure pressure is the （）.

A.bimetallic type
B.diaphragm type
C.bourdon tube type
D.resistance-temperature type

單項(xiàng)選擇題

When refrigerant leaves the receiver, it flows next on to the （）.

A.evaporator coils
B.liquid strainer
C.compressor
D.condenser

<pre id="bl77e"></pre>