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。
In the navigation buildings of high water head, the cost of ship lift is generally lower than ship lock.
在高水头的通航建筑物中，升船机的造价通常低于船闸。
In the navigation buildings of high water head, the cost of ship lift is generally lower than ship lock.
在高水头的通航建筑物中，升船机的造价通常低于船闸。
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