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| coal concentrate (1) |
| drying (1) |
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| electromechanical transducer (1) |
| inductance (1) |
| perforated rotor (1) |
| coal concentrate (1) |
| drying (1) |
| dynamic characteristics (1) |
| electromechanical transducer (1) |
| inductance (1) |
| perforated rotor (1) |