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。
The floor, piers and intercepting walls are its substructures. the traffic bridge, operating bridge and altar are treated as internal supports.
对双铰底板式船闸闸室与土体的动力相互作用研究显得十分必要。
The research on dynamic interaction between soil and ship locks with double-hinged soleplate is important and necessary.
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