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| 后扶垛; 支墩墙 | |||
| 扶壁式挡土墙; 扶壁; 扶垛墙; 扶壁墙 | |||
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counterfort wall : 8 phrases in 3 subjects |
| Engineering geology | 3 |
| Hydroelectric power stations | 2 |
| Technology | 3 |
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