Subscription Ensuring Explosion Safety of the Mine Methane Flow Meter during Operation, as well as at Primary and Periodic Calibration Abramson K.M., Baysagov Ya.Zh., Bozhko D.I., Monakhov I.A. DOI: 10.24000/0409-2961-2021-3-41-47 Year: 2021 Issue num: 3 more