备用闸门 alternate gate; guard gate; reserve gate; spare gate 外作用闸 external acting brake; externally acting brake ..
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Hot Spare gate 热备用逻辑门
Cold Spare gate 冷备件门
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Mr Patel lifted the gate and the van drove off with seconds to spare, a ceremony at Luton Crown Court heard.
BBC: Network Rail signalman praised for averting Sandy crash
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