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| gradation of aggregates | |||
| aggregate gradation; aggregate grading; grading of aggregates | |||
| gradation of aggregate; grading of aggregate | |||
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骨料级 配 : 66 phrases in 7 subjects |
| Architecture | 1 |
| Bridge construction | 1 |
| Construction | 2 |
| Electronics | 6 |
| Hydroelectric power stations | 14 |
| Metallurgy | 4 |
| Technology | 38 |
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