空气

The air in the forest is purer and cleaner than that in the city.

森林的空气比城市里的空气洁净。

Fire-fighting foam is an aggregate of air-filled bubbles formed from aqueous solutions and has a lower density than that of flammable liquids. It is principally used to form a cohesive floating blanket over flammable and combustible liquids and prevents or extinguishes fire by excluding the air and cooling the fuel. It also prevents from reignition by suppressing formation of flammable vapors. Therefore, Fire-fighting foam can be used as a fire prevention, control, or exposure protection for flammable liquid fire hazards.

消防泡沫是一种填充空气的泡沫水溶液集合体，其密度比易燃性液体低，并可粘著、覆盖於易燃性与可燃性液体表面而达到隔离空气、冷却燃料及防止燃料持续蒸发引燃等功用，所以消防泡沫常使用在易燃性危险液体之预防火灾、制压火势及防阻延烧上。

A cover, including an air cowl, is removably mounted to the housing proximate the air inlet.

外罩，包括空气通风帽，被可拆卸地安装在外壳的靠近空气入口处。

The cartridge ( 2 ) is removably mounted and rotatably adjustable about an axis of rotation ( 17 ) between a first position for allowing no or little air to pass through and a second position for allowing more air to pass through than in the first position.

该筒(2)可拆卸地安装，且围绕旋转轴线(17)在用于允许极少或者不允许空气通过的第一个位置和用于允许比在第一个位置多的空气通过的第二个位置之间可旋转地调节。

The experimental results showed, after absorption of CO2, the material could be reprepared, whose performance of absorbing CO2 for the second time is affected by the temperature and air flux during repreparation.

实验结果表明，在吸收CO2后材料的再次合成过程中合成温度及空气流量影响材料吸收CO2的循环性能，在再次合成温度为750℃，空气流量为100mL／min的条件下，合成的材料具有良好的循环吸收CO2的性能。

The term ambient air quality refers to the quality ofair representatively sampled from an area .

空气质量一词是指一个地区抽样的有代表性的空气质量。

The residua were air-blown in a batch reactor at an air flow of 3 L.kg-1.min-1, 260 and 280℃ for 0.5-11.5 h respectively.

在3 L.kg-1.min-1空气通入量，260和280℃下对所得渣油在实验室釜式氧化装置进行了0.5-11.5 h空气氧化。

According to the investigation about microorganism content of the air in different season and area, it was shown that the quantity of the air microorganism content including bacterium, mould and saccharomycetes was much higher in summer than it in the other three seasons.

通过对衡水湖不同季节、不同区域空气中微生物含量的调查。结果显示夏季衡水湖空气中微生物如细菌、霉菌、酵母菌数量明显高于秋季、春季、冬季。

And the extreme centrifugal force from the enlarged higher impeller stops the solution as it entering the higher impellr. At the same time, the full solution in the chamber stops the air mixed with the solution in the chamber to go down. This way masterly eliminates both big problems of vertical sealless pump, overflow at high pressure and bubbles at big flow.

上部叶轮时，即受加大之背叶的强大阻力而无法上升，但上部叶轮所卷入液体中的空气，却受阻於水室中贮满的液体而无法下降，如此巧妙地排除了立式无轴封泵高压时溢流，或大流量时吸入空气的两大难题。

When pump starts, the lower impeller lifts the solution up step by step. And the extreme centrifugal force from the enlarged higher impeller stops the solution as it entering the higher impellr. At the same time, the full solution in the chamber stops the air mixed with the solution in the chamber to go down. This way masterly eliminates both big problems of vertical sealless pump, overflow at high pressure and bubbles at big flow.

塑宝SV泵剖面结构SV Super Series Analytical cross section SV泵剖面结构泵开始运转时，底部叶轮将液体逐步上推，待液体进入上部叶轮时，即受加大之背叶的强大阻力而无法上升，但上部叶轮所卷入液体中的空气，却受阻於水室中贮满的液体而无法下降，如此巧妙地排除了立式无轴封泵高压时溢流，或大流量时吸入空气的两大难题。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。