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

單項選擇題

The heat used to change a liquid to a vapor is called （）.

A.latent heat of fusion
B.latent heat of vaporization
C.specific heat of vaporization
D.latent heat of the gas

你可能感興趣的試題

單項選擇題

The （） compressor and its electrical motor are entirely housed in a gas-tight casing.

A.open-type
B.hermetic
C.A and B
D.None of the above

單項選擇題

In a compression refrigeration plant the refrigerant flows from the expansion valve and through the （） where it absorbs heat from the space being cooled and becomes a gas or vapor.

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

<dd id="4kvfz"></dd>

<dd id="4kvfz"></dd>

<sup id="4kvfz"><legend id="4kvfz"><div id="4kvfz"></div></legend></sup><dl id="4kvfz"></dl>