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主体工程施工
| 大型设施
| 布置图
| 主体工程施工 | |
| hydroel.st. | construction of main structures |
| 大型设施 | |
| tech. | large-scale facility |
| 布置图 | |
| bridg.constr. | arrangement plan; general plan; layout plan |
| econ. | layout drawing |
| hydroel.st. | layout chart |
| met. | arrangement diagram; arrangement drawing |
| oil | plot plan |
| |||
| construction of main structures | |||
| 主体工程施工: 3 phrases in 1 subject |
| Hydroelectric power stations | 3 |