1)flier,flyer,空中飞人(美作:aerialist)2)in-flight,空中3)air powder,空中粉尘4)Air striking,空中打击5)driving birds in air,空中驱鸟6)vertical sampling,空中采样7)Air transportation,空中转运8)air medical emergency,空中急救9)air target,空中目标10)air traffic,空中交通
用法和例句
Developed a high-powder,efficient and practical air powder vacuum cleaner after studing its working principle in order to suck up air powder,the vacuum cleaner is vevy practical.
Threat value of air target is that it can evaluate damage degree of attacking ground(surface) target in command and control of air defense system.
空中目标的威胁值评估是指空中目标对所攻击的地(水)面目标可能造成的毁伤程度进行评价。
A parameter estimating method for air targets by fire control system of air defense weapon is presented in allusion to the characteristics in this paper.