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| 化学 试剂: 26 phrases in 9 subjects |
| Chemistry | 1 |
| Drilling | 3 |
| General | 10 |
| Geochemistry | 1 |
| Nuclear and fusion power | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 2 |
| Oil processing plants | 3 |
| Oilfields | 4 |
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