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单选题
1978. 系统中向座舱提供压缩空气的部分及其控制装置。包括与压气机相关的控制和指示系统等项目,如适用。不包括客舱增压的压力控制和指示系统。
A
That portion of the system and its controls which supply environment air to the cabin. Includes items such as controls and indicating systems related to the compressors, etc., if applicable. Does not include the stress control and indicating system for the cabin pressurization.
B
That portion of the system and its controls which supply compressed air to the cabin. Includes items such as controls and indicating systems related to the compressors, etc., if applicable. Does not include the pressure control and indicating system for the cabin pressurization.
C
That portion of the system and its controls which supply compressed air to the cockpit. Includes items such as controls and indicating systems related to the compressors, etc., if applicable. Does not include the pressure control and indicate system for t he cabin pressurization.
答案解析
正确答案：B
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