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| dense gradation | |||
| close-graded (的) | |||
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密级配 : 58 phrases in 9 subjects |
| Architecture | 6 |
| Bridge construction | 1 |
| Construction | 1 |
| Electronics | 1 |
| Engineering geology | 3 |
| General | 4 |
| Hydroelectric power stations | 8 |
| Metallurgy | 1 |
| Technology | 33 |
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