Keywords |
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accident prevention [1] |
accounting information system [1] |
acoustic screens and curtains [1] |
an avalanche of damage [1] |
assurance system [1] |
belt conveyor [1] |
coal mine [1] |
coal quality control [1] |
compression ignition engine [1] |
control cards [1] |
culture of quality [1] |
directives of European Union [1] |
economic knowledge [1] |
economic relations [1] |
efficiency ratio [1] |