469.增压系统通过控制座舱( )控制座舱压力Pressurization is performed by controlling( )

　温度Temperature

　排气量the amount of air discharged overboard

　湿度The humidity

答案解析

正确答案：B

解析：

题目解析增压系统通过控制座舱( )控制座舱压力 Pressurization is performed by controlling( ) A. 温度 Temperature B. 排气量 the amount of air discharged overboard C. 湿度 The humidity 答案: B 解析: 增压系统的目标是维持飞机飞行时的座舱压力在合适的范围内，以确保乘客和机组人员的舒适和安全。选项中的"A. 温度"和"C. 湿度"并不直接与座舱压力控制有关，因此排除。正确的答案是"B. 排气量"，这是通过控制从外排活门排出的空气量来调整座舱内的压力，从而实现座舱增压。

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