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| минеральная посыпка (кровли) | |||
| обогащение | |||
| обогащение минерального сырья (ART Vancouver) | |||
| обогащение минералов | |||
| обогащение полезных ископаемых (In the field of extractive metallurgy, mineral processing, also known as mineral dressing or ore dressing, is the process of separating commercially valuable minerals from their ores. wiki Alexander Demidov) | |||
| mineral dressing: 2 phrases in 2 subjects |
| Geology | 1 |
| Mining | 1 |