The paper presented a special vehicle fuel cell diagnosis device which including control unit, fuel gas supply unit, power conditioning unit, cooling unit, and electric power consumer unit.

介绍了一种特殊的车载燃料电池诊断装置，该装置包括控制单元、燃料气体供给单元、电力调整单元、冷却单元和电力消耗单元。

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Turn off air con: a car engine generates enough pollution without having to power an onboard air conditioning unit.

关上空调：一辆车就算不开随车空调，也已经产生足够的污染了。

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In the image above, you will notice that the airplane is connected to ground power, ground air conditioning and a ground air-start unit.

在上图中，你会发现这架飞机地面电源相连，地面空调和地面空气启动装置。

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The ES is critical to aircraft operation it distributes power around the aircraft from the engines and the Auxiliary Power Unit (APU) which provides the power to operate the air conditioning and to start the engines at the gate to all the systems requiring electricity.

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