Ключевые слова:
Exhaust gases|Protected electrical equipment|Coal mining|Type testing|Marking|Occupational safety|Engine fuel systems|Joints|Explosions|Mining|Flammable atmospheres|Fire tests|Cut-out devices|Flame traps|Fire-damp|Performance testing|Enclosures|Engine exhaust systems|Engine components|Internal combustion engines|Hydraulic tests|Diesel engines|Flameproof materials|Fire safety|Fire resistance|Flame propagation