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| concrete slope protection | |||
| concrete block protection; concrete protection of slope | |||
| concrete pitching | |||
| 混凝土护坡: 15 phrases in 6 subjects |
| Electronics | 2 |
| Hydroelectric power stations | 4 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Technology | 6 |
| Water resources | 1 |
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