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| 化铜: 136 phrases in 13 subjects |
| Chemistry | 15 |
| Electronics | 7 |
| Food service and catering | 4 |
| General | 42 |
| Geology | 3 |
| Inorganic chemistry | 1 |
| Medical | 5 |
| Metallurgy | 1 |
| Military | 1 |
| Oil / petroleum | 1 |
| Oil processing plants | 2 |
| Radio | 1 |
| Technology | 53 |