The hazards around jet engines in operation include inlet suction, heat, exhaust and noise. 运转中的喷气发动机附近存在的危险包括
A.入口吸入; B.;热度 C.噪音,排气; D.以上都是;正确答案D
The hazards around jet engines in operation include inlet suction, heat, exhaust and noise. 运转中的喷气发动机附近存在的危险包括
A.入口吸入; B.;热度 C.噪音,排气; D.以上都是;正确答案D