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| M 用M冲淡N; M 用M 使N稀化 | |||
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thin with : 20 phrases in 10 subjects |
| Bridge construction | 3 |
| Economy | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| General | 2 |
| Hydroelectric power stations | 1 |
| Librarianship | 2 |
| Metallurgy | 1 |
| Refrigeration | 1 |
| Technology | 7 |
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