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| acid reaction: 35 phrases in 11 subjects |
| Analytical chemistry | 3 |
| Chemistry | 4 |
| General | 3 |
| Makarov | 8 |
| Medical | 7 |
| Oil / petroleum | 2 |
| Oil and gas | 4 |
| Oil and gas technology | 1 |
| Polymers | 1 |
| Sakhalin | 1 |
| Technology | 1 |
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