混凝土坝下游面钢衬钢筋混凝土管道既是一种新型的布置方式，又是一种新型的结构形式。
The Penstock laid on downstream face of dam is not only a new type of arrangement, but also a new kind of structure.
混凝土坝下游面钢衬钢筋混凝土管道既是一种新型的布置方式，又是一种新型的结构形式。
The Penstock laid on downstream face of dam is not only a new type of arrangement, but also a new kind of structure.
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