You expect the vapor pressure to go down.(可以預(yù)計蒸汽壓會下降。)

The crisper keeps water vapor in.(該保鮮儲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.(熒光燈用電激發(fā)水銀蒸氣。這會生成紫外線光而使得鍍在燈管內(nèi)壁上的磷涂層發(fā)光.)

Water vapor accounts for about 4% by volume in moist areas.(在氣候潮濕地區(qū)，水汽按體積占(空氣體積)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讓85%的水最終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.(其中之一是通過蒸發(fā)的方式，把液態(tài)水轉(zhuǎn)化為水蒸氣——來減少海洋中的水分。)

The pressure will result in the formation of a vapor pocket.(壓力將導(dǎo)致形成一個蒸汽口袋。)

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.(你不僅僅制造水蒸氣，你還會制造一些氮氧化物，NOX，或者如大家所知到的nox，而這是煙霧的前驅(qū)體。)

The same structure that permits the one gas to enter the leaf, however, permits another gas—water vapor—to be lost from it.(同樣的結(jié)構(gòu)允許一種氣體進(jìn)入葉子，然而，也使得另一種氣體——水蒸氣——從葉子中消失。)

Astronomers therefore prefer dry sites with little water vapor, which is generally found at higher altitudes.(因此，天文學(xué)家更喜歡水蒸氣很少的干燥地點，而水蒸氣通常出現(xiàn)在海拔較高處。)