防毒面具: a gas maskall service gas maskall-service gas maskbreathing maskcanister re iratorcanister respiratordust respiratorface maskgas helmetgas-helmetgasproof maskprotective masksmoke helmetsmo
救火: fire fighting◇救火车 fire engine; fire truck; fire brigade wagon; 救火队 fire brigade; 救火队员 fireman; fire fighter; 救火机 fire engine; 救火梯 fire ladder; pompier ladder; pompier; 救火云梯 bangor ladder;