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| Russian | English |
| взрывонепроницаемая оболочка | explosion-proof enclosure (An enclosure that can withstand an explosion of gases within it and prevent the explosion of gases surrounding it due to sparks, flashes or the explosion of the container itself, and maintain an external temperature which will not ignite the surrounding gases. Found on – АД  flowmeterdirectory.com Метран) |
| взрывонепроницаемый зазор | flame path gap (Andy) |
| взрывонепроницаемый щелевой зазор | flame path gap (во взрывозащищённом электродвигателе Andy) |