生物医药大词典
英文: Additionally there are ground-to-air, ground-to-ground, air-to-ground and air-to-air missiles, etc.
中文: 另外，还有地对空导弹、地对地导弹、空对地导弹、空对空导弹等。英文: Warmer air rises and cooler air falls.
中文: 热空气上升，冷空气下降。英文: Air tightness test and safety valve adjusting for main air receiver (control air receiver, air horn receiver)on board.
中文: 主空气瓶（控制空气瓶、汽笛空气瓶）装船后气密试验和安全阀的调整。英文: Air freight service:air to air or sea to air， door to door services.
中文: 空运服务：空空联运及海空联运,门到门的一条龙服务。。英文: Air Attack. This is used against Air units.
中文: 空中打击。对空中部队的攻击能力。