| 单词 | 气团 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔advection〕A local change in the properties, such as temperature, of an air mass caused by the horizontal movement of the air mass.平流：由于气团水平移动而导致气团特性的区域性变化，如温度美国传统〔air mass〕A large body of air with only small horizontal variations of temperature, pressure, and moisture.气团：水平方向上温度、气压和湿度差异微小的大气团美国传统〔cold front〕The leading portion of a cold atmospheric air mass moving against and eventually replacing a warm air mass.冷锋：冷空气气团的前锋部分，排斥并最终取代暖气团美国传统〔cumulus〕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.积云：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美国传统〔divergence〕A meteorological condition characterized by the uniform expansion in volume of a mass of air over a region, usually accompanied by fair dry weather.辐散，散度：一种大气状况，特征为气团均匀散布在某一地区上空，常伴随晴朗干燥天气美国传统〔fog〕Condensed water vapor in cloudlike masses lying close to the ground and limiting visibility.雾气：离地很近并限制能见度的以云状气团形式出现的浓缩水蒸汽美国传统〔front〕Meteorology The interface between air masses of different temperatures or densities.【气象学】 锋面：不同温度、密度的两大气团交界处美国传统〔occlusion〕The process of occluding air masses.锢囚：将气团锢囚的过程美国传统〔polar front〕The region or boundary separating air masses of polar origin from those of tropical or subtropical origin.极锋：将南极气团与赤道或亚热带地区气团隔离开来的区域或分界美国传统〔primeval〕Primeval clouds of gas formed themselves into stars.原生气团形成了恒星。朗文当代〔vorticity〕Meteorology A measure of the spin of an air mass such as a low- or high-pressure weather system.【气象学】 气压涡度测量：测量气团如高低压气象系统的旋转美国传统Photochemical smogs are worse in summer, when the sun's rays on the cloud of traffic fumes produce a photochemical reaction, creating high levels of ozone.当夏天阳光照射在交通排放的废气团上，产生光化作用释放大量臭氧，光化烟雾就更加严重了。剑桥国际 |
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