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单选题
468、当液压系统 B 的发动机驱动泵压力低于正常时,液压动力转换组件系统为前缘襟翼和缝翼提供备用液
468、当液压系统 B 的发动机驱动泵压力低于正常时,液压动力转换组件系统为前缘襟翼和缝翼提供备用液
压。
A
When hydraulic system B engine drive pump pressure is under normal conditions, the hydraulic powertransfer unit system supplies standby hydraulic pressure to the leading edge flaps and slats.
B
The hydraulic power transfer unit system is provide spare hydraulic pressure to the leading edge flaps andslats when hydraulic system B engine-driven pump pressure is abnormal.
C
The hydraulic power transfer unit system supplies alternate hydraulic pressure to the leading edge flapsand slats when hydraulic system B engine-driven pump pressure is below normal
答案解析
正确答案：C
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