You expect the vapor pressure to go down.(可以预计蒸汽压会下降。)
The crisper keeps water vapor in.(该保鲜储藏格可以使水汽保留在里面。)
Fluorescent lights use electricity to excite mercury vapor. This produces ultraviolet light that causes a phosphor coating inside the bulb to glow.(荧光灯用电激发水银蒸气。这会生成紫外线光而使得镀在灯管内壁上的磷涂层发光.)
Water vapor accounts for about 4% by volume in moist areas.(在气候潮湿地区，水汽按体积占(空气体积)4%左右。)
"Efficient" irrigation is often used to describe systems that result in 85% of the water disappearing in vapor.(“有效”灌溉通常指的都是一些让85%的水最终以水汽的形式逸散的作法。)
One of these is the subtraction of water from the ocean by means of evaporation—conversion of liquid water to water vapor.(其中之一是通过蒸发的方式，把液态水转化为水蒸气——来减少海洋中的水分。)
The pressure will result in the formation of a vapor pocket.(压力将导致形成一个蒸汽口袋。)
You make not only water vapor, but you make some nitrous oxides, NOX, or nox as it is known, and this is the precursor to smog.(你不仅仅制造水蒸气，你还会制造一些氮氧化物，NOX，或者如大家所知到的nox，而这是烟雾的前驱体。)
The same structure that permits the one gas to enter the leaf, however, permits another gas—water vapor—to be lost from it.(同样的结构允许一种气体进入叶子，然而，也使得另一种气体——水蒸气——从叶子中消失。)
Astronomers therefore prefer dry sites with little water vapor, which is generally found at higher altitudes.(因此，天文学家更喜欢水蒸气很少的干燥地点，而水蒸气通常出现在海拔较高处。)
