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| охрана почв; предотвращение эрозии почв | |||
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conservation of soil : 12 phrases in 7 subjects |
| Construction | 1 |
| Ecology | 3 |
| Electronics | 1 |
| Energy industry | 1 |
| General | 2 |
| Makarov | 1 |
| United Nations | 3 |
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