rock dusting
in mining, application of pulverized inert rock material so to control the dust explosion hazard in mines
en-GB/ˈɹɒk ˈdʌstɪŋ/
en-US/ˈɹɑk ˈdʌstɪŋ/
in mining, application of pulverized inert rock material so to control the dust explosion hazard in mines