| 摘要 |
An hydraulic power assembly 10 is provided, including at least one primary hydraulic power unit 20 supplying hydraulic fluid 30 to a hydraulic system 34, and a contingency hydraulic power unit 50 utilizing the orbiter's helium storage tank 52 to power a contingency hydraulic drive 56 to supply hydraulic fluid 30 from a contingency hydraulic fluid reserve 58 to the hydraulic system 34 during peak loading conditions.
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