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Continue to ChatSmartphones may start monitoring drilling equipment in Siberian coal mines https://www.ewdn.com/2013/05/02/smartphones-may-start-monitoring-drilling-equipment-in-siberian-coal-mines/
Smartphones may start monitoring drilling equipment in Siberian coal mines https://www.ewdn.com/2013/05/02/smartphones-may-start-monitoring-drilling-equipment-in-siberian-coal-mines/