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- Common Air Ground Environment 通用空-地警戒系统
- Ground environment is damaged and the serious mining subsidence calamities come out by common mining technology. 摘要常规方法开采煤炭已对地面环境造成了严重的沉陷灾害。
- The environment of air in Menshan mountain is fresh and clean due to large amount of negative ion of oxygen in the air which the content reach about 2.2million per cu.cm, 4400 times of common air. 蒙山大气环境清新宜人，每立方厘米空气中负氧离子含量高达220万个，是空气中负氧离子的4400倍，被喻为“天然氧吧、养生圣地、长寿摇篮”。
- For example, outdoor sows have little respiratory pathogen exposure compared with indoor sows who share a common air space. 例如室内养猪许多母猪生活在共同的空间里，所以它们就很容易感染上呼吸道的疾病，但在室外就不容易感染上呼吸道疾病。
- The competition will be at the Marine Corps Air Ground Combat Center in Twentynine Palms, Calif.-- a vast installation in the Mojave Desert region east of Los Angeles. 竞争工作将在加州的美国海军陆战队地面战斗中心进行，该中心在洛山矶东部的莫哈韦沙漠地区中拥有数量众多的设备。
- Though it may not seem like the most glamorously green invention, this redesign of the common air conditioner could save a quadrillion BTUs a year in the United States alone. 虽然它看起来不像是最神奇的绿色发明，但是这种对普通空调再改造的设计确实可以帮助一年内减少上千亿单位的热量，而这仅仅只是在美国所估计的数量。
- NATO Air Defence Ground Environment Network 北约组织地面防空网
- Air Defense Ground Environment System 地面防空警戒系统
- Extended Air Defence Ground Environment 扩大的防空地区环境
- German Air Defense Ground Environment System 德国防空地面警戒系统
- Acid rain is rain, snow or fog that is polluted by acid in the atmosphere and damages the environment.Two common air pollutants acidify rain: sulphur dioxide (SO2) and nitrogen oxide (NOX). 我们生活环境里的酸会对我们吃的食物、喝的水以及呼吸的空气产生影响。
- German Air Defence Ground Environment 德国防空地面设施
- German Air Defense Ground Environment 德国地面防空系统
- Indian Air Defence Ground Environment System 印度空军防卫地面设施系统
- Knowledge without common sense counts for little. 光有学问而无常识，则这种学问无甚价值。
- Malaysian Air Defense Ground Environment 马来西亚地面防空警戒系统
- NATO Air Defense Ground Environment 北约地面防空警戒系统
- common air traffic control system 军民通用航空管理系统
- NATO Air Defense Ground Environment Consortium 北约地面防空警戒系统组织(亦称"纳其"组织)
- Salt is a common food preservative. 盐是一种常用的食物防腐剂。
