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

<ruby id="ysqk0"><xmp id="ysqk0"></xmp></ruby>

<ruby id="ysqk0"><small id="ysqk0"></small></ruby>

<dl id="ysqk0"></dl>

單項(xiàng)選擇題

The amount of heat released by steam when it changes to water at the same temperature is called（）.

A.latent heat of condensation
B.latent heat of vaporization
C.latent heat of saturation
D.sensible heat of condensation

你可能感興趣的試題

單項(xiàng)選擇題

Latent heat changes the （） of water.

A.physical state
B.temperature
C.atmospheric pressure
D.sensible pressure

單項(xiàng)選擇題

（） will be used to blow away the combustion products from the tube surfaces.

A.The blow down valve
B.The scum valve
C.The air release cock
D.The soot-blower