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| борьба с загрязнением окружающей среды (erelena) | |||
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| контроль за загрязнением; борьба с загрязнением | |||
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Control of Pollution : 31 phrases in 11 subjects |
| Diplomacy | 3 |
| Ecology | 9 |
| Energy industry | 8 |
| Fish farming pisciculture | 1 |
| Makarov | 2 |
| Medical | 1 |
| Nautical | 1 |
| Trade classification | 1 |
| United Nations | 2 |
| Water supply | 2 |
| Weapons of mass destruction | 1 |