... hole-bottom working characteristic 井底工作特性 hole-closure rams 封井眼闸板 hole-deviation correction 井斜校正 ...
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hole-closure rams 封井眼闸板
closure rams
关闭公羊
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The skylight is raised by two hydraulic rams. It has in-built sensors that prevent it from closing on obstructions, but that activate closure during sudden gusts of winds.
天窗由两只压力扬汲机控制启动，它有内置的传感器，防止因障碍物而关闭，但是当强风来袭时，会自行关闭。
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