helicopteristn.直升机驾驶员
helicoptern.直升飞机vt.用直升飞机载送vi.乘直升机
Helicopter Ambulance Service To Emergencies直升机紧急救护服务
Helicopter Aerodynamics and Flight Dynamics直升机空气动力学与飞行力学
Helicopter Integrated Defensive Aids System直升机综合防御支援系统
Helicopter and Airplane Services Corporation直升机与飞机服务公司
Helicopter Anti-Submarine Warfare Squadron反潜直升机中队
Helicopter Identification by Radar Detection直升机雷达探测
Helicopter-Borne Swingfire Antitank Missile直升机机载旋转发射反坦克导弹
Helicopter and Ice-breaker operation Phrases直升机和破冰船作业用语