control and information and safety monitoring system for mining and heavy industry comprised of computers, computer hardware, computer software, computer peripherals, computer interface boards, computer cables, electric switches, electrical relays, sensors for combustible gas, oxygen, temperature, relative humidity, and airflow, threshold and alarm electrical detectors and pressure transmitters

'airflow':40 'alarm':43 'board':24 'cabl':26 'combust':33 'compris':13 'comput':15,16,18,20,22,25 'control':1 'detector':45 'electr':27,29,44 'gas':34 'hardwar':17 'heavi':11 'humid':38 'industri':12 'inform':3 'interfac':23 'mine':9 'monitor':6 'oxygen':35 'peripher':21 'pressur':47 'relat':37 'relay':30 'safeti':5 'sensor':31 'softwar':19 'switch':28 'system':7 'temperatur':36 'threshold':41 'transmitt':48

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