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| 分级注水泥法 | |||
| 分级法 | |||
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stage method : 49 phrases in 12 subjects |
| Bridge construction | 2 |
| Business | 5 |
| Earth sciences | 2 |
| Engineering geology | 2 |
| Hydroelectric power stations | 1 |
| Metallurgy | 8 |
| Oil / petroleum | 5 |
| Rail transport | 1 |
| Space | 4 |
| Technology | 17 |
| Textile industry | 1 |
| Water resources | 1 |
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