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化学 光 谱学 : 61 phrases in 14 subjects |
| Agriculture | 3 |
| Automobiles | 3 |
| Aviation | 1 |
| Chemistry | 11 |
| Earth sciences | 10 |
| Ecology | 1 |
| Electronics | 5 |
| Engineering geology | 2 |
| General | 3 |
| Geology | 1 |
| Metallurgy | 6 |
| Oil / petroleum | 4 |
| Oil processing plants | 2 |
| Technology | 9 |
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