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| 混凝土围堰由混凝土为主构筑的围堰称为混凝土围堰。混凝土围堰常用于在岩基上修建的水利枢纽工程 | |||
| 混凝土围堰 | |||
| concrete cofferdam: 7 phrases in 1 subject |
| Technology | 7 |
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