99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

<pre id="m9pdl"><strong id="m9pdl"></strong></pre>

單項選擇題

If the capacity of the refrigeration compressor is too small, the excess vapor will accumulate in the evaporator, causing the pressure to （）.

A.rise
B.fall
C.be maintained constant
D.None of the above is true

你可能感興趣的試題

單項選擇題

In the refrigeration compressor the temperature of the vapor is （） by compression.

A.raised
B.risen
C.reduced
D.maintained constant

單項選擇題

It should be ensured that only （） vapor is handled by the refrigeration compressor.

A.humidity
B.dry
C.steam
D.oil

<ins id="ymjo5"></ins>

<blockquote id="ymjo5"><xmp id="ymjo5">

<ins id="ymjo5"></ins>