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;
正确答案是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;
正确答案是D