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| aggregate grading; gradation of aggregate | |||
| grading of aggregates | |||
| grading of aggregate; grading of aggregation | |||
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集 料级配 : 64 phrases in 7 subjects |
| Architecture | 4 |
| Bridge construction | 5 |
| Construction | 1 |
| Engineering geology | 1 |
| Hydroelectric power stations | 11 |
| Metallurgy | 1 |
| Technology | 41 |
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