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| |||
| downstream apron; downstream floor | |||
| scour apron | |||
| anti-scour protection; scour protection apron; spillway apron | |||
|
防 冲 护坦 : 6 phrases in 4 subjects |
| Engineering geology | 1 |
| Hydroelectric power stations | 3 |
| Hydrology | 1 |
| Technology | 1 |
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