Masses of Air的意思|示意

Each of the preceding classifications of polluted air masses involves primarily particulate pollutants.

上述每类污染空气的物质一形成就含有粒状污染物。

A dense, white, fluffy, flat-based cloud with a multiple rounded top and a well-defined outline, usually formed by the ascent of thermally unstable air masses.

一种浓密、平底状的白色云块，有一个多重圆形的顶部和界线分明的轮廓，通常是由不稳定的热气团上升形成的。

It is during these seasons that the differences in temperature between warm and cold masses of air are greatest.

就在这些季节里，热气团与冷气团的温差最大。

Any of several brownish seaweeds of the genus sargassum of tropical Atlantic waters having rounded air bladders and often forming dense floating masses.

果囊马尾藻一种马尾藻属褐色海藻，产于大西洋热带水域，有圆形气囊，常常大片聚集、飘浮在一起。

Each of the preceding classifications of polluted air masses involves primarily particulate pollutants.

上述每类被污染空气基本都含有粒状污染物。

FRONT - boundary between air masses of different temperature and pressure.

锋面—不同温度和压力的空气团间的边界。