The job can either be to set up a replacement air system - for instance because of a command in connection with exhaust of noxious fumes - or to ensure a minimum temperature in the room.

这项工作一般就是建造一个空气转换系统---比如把一个处理机与毒气排放柜相连接，或者想办法保持室内一个最低的温度。

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Boeing will deliver the replacement wing sets to Hill Air Force Base, Utah, in four parts: three wing sections and an installation kit.

波音将把置换机翼部件交付到犹他州希尔空军基地，部件分为四部分：三个机翼剖面和一个装置零配件。

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Another even higher profile project that the Air Force is working on is the long running and problem plagued replacement for the aerial tankers in use.

空军另外一个高调的工作计划是——更换现役的长时飞行、毛病不断的空中加油机。

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Its seismic exploration ships off the coast of Angola have cut the time it takes to get approval and order replacement parts for things like air conditioners from ten days to as little as two minutes.

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For example, the public school district has rebounded to about 4, 600 students from a pre-Katrina population of about 6, 100, and around 700 of 1, 000 replacement homes have been built at Keesler Air Force Base.

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Comfort Systems offers installation, maintenance, repair and replacement services for heating, ventilation, and air conditioning (HVAC) systems in the mechanical services industry.

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