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| ترسب ؛ترسب الكبريت ؛ترسب حمضي او الحمض | |||
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| رواسب | |||
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отложение : 9 phrases in 4 subjects |
| Environment | 4 |
| Fishery fishing industry | 1 |
| Oceanography & oceanology | 1 |
| Oil / petroleum | 3 |
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