Meanwhile the devices of speed control can instead the large electric devices of lift gate valves and butterfly valves.
同时可加装速度调控装置，可取代启闭闸阀或蝶阀的大型电动装置。
Loaded with realistic functions - platforms really lift, sliding doors and gate!
载有切合实际的职能-平台真正解除，滑动门和门！
The layout of upper head with lowering working gate of Three Gorges ship lift is studied.
对三峡升船机上闸首下沉式工作闸门布置进行研究。
The layout of upper head with lowering working gate of Three Gorges ship lift is studied.
对三峡升船机上闸首下沉式工作闸门布置进行研究。
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