这种变化在保护性通气组与常规通气组之间没有统计学意义（P>0.05）。
There were no significant differences of changes between the TG and the PG (P >0.05).
另有常规治疗组50例，仅用吸氧、抗感染、必嗽平、改善通气等常规处理。
Other 50 patients were served as control and were treated with conventional therapy only.
这股燃油流可以使引射泵把燃油从通气油箱和外组机翼油箱的底部吸出来。
This flow of fuel causes the jet pumps to remove the fuel from the surge tank and the bottom of the wing tank outer cell.
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