题目内容
词汇与结构The time for useful consciousness is _____ on the altitude flown, the size of the leak and the size of the fuselage.
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词汇与结构The amount and pressure of the ________ air is regulated by a computer and outflow valves.
词汇与结构In icing conditions, pneumatic air can be used to ____ice buildup/ accumulation or to remove the ice/de-ice.
词汇与结构The air conditioners supply warm air and cooling air. They are _____to a certain temperature, which makes people onboard comfortable.
词汇与结构The pressurization system is used to _____ the pressure difference between outside air and cabin by the outflow valves.
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