为促进能效提升，现代飞机襟翼操作改用了更轻的电子系统，而不是液压系统。
In the push to improve efficiency, wing flaps are now operated with lightweight electrical systems instead of hydraulics.
液压提升放卷架并配有自动张力及电脑纠偏系统。
Hydraulic lifting unwinding rack, equipped with auto tension and computer deviation correcting system.
给出了液压提升机模拟实验系统结构及能量回收效率的计算方法。
The structure of hydraulic system for simulating lifting apparatus was proposed and calculating method was defined.
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