题目内容
词汇与结构This valve controls the cabin pressure and also ______as a safety relief.
查看答案
搜索结果不匹配？点我反馈
更多问题
词汇与结构The pilot can _____the cabin pressure at will through the outflow valve.
词汇与结构Operational considerations typically require it to be set at 6,000 to 8,000 ft (1,800 to 2,400 m) – the latter being approximately 11 psi（pound per square inch）, giving a pressure _______ between the cabin and the outside air of around 7.5–8 psi.
词汇与结构If the cabin were ______ at sea level pressure while flown above 35,000 feet the pressure differential would exceed 9 psi limiting the structural life of the fuselage.
词汇与结构Cabin altitudes are maintained at up to 2,500 meters so pressurization does not eliminate all ______ problems.
微信支付 
支付宝支付