A practical stair structure of sluice operating bridge was introduced.
介绍简易实用型水库工作桥楼梯结构新型式。
The floor, piers and intercepting walls are its substructures. the traffic bridge, operating bridge and altar are treated as internal supports.
底板、闸墩和截水墙等为其子结构,交通桥、工作桥和胸墙等处理为内部支撑。
To bridge between the outermost and middle layers, you need an operating system.
为了在最外层和中间层之间建立联系,需要一个操作系统。
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