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| 坝趾反滤层 | |||
| 坝趾滤层 | |||
| 坝址反滤层; 护脚倒滤层; 坡脚反滤层; 坝趾倒滤层 | |||
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toe filter : 5 phrases in 3 subjects |
| Engineering geology | 1 |
| Hydroelectric power stations | 2 |
| Technology | 2 |
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