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belt conveyor (1) |
coal flow (1) |
coal mine (1) |
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frequency converter (1) |
main transport (1) |
regulated drive (1) |
вугільна шахта (1) |
вугільний потік (1) |
енергоефективність (1) |
belt conveyor (1) |
coal flow (1) |
coal mine (1) |
energy efficiency (1) |
frequency converter (1) |
main transport (1) |
regulated drive (1) |
вугільна шахта (1) |
вугільний потік (1) |
енергоефективність (1) |