短语词组短語aerodynamic spin damping characteristics 氣動力滾轉阻尼特性ad aerodynamic damping 氣動阻尼equivalent aerodynamic damping 等傚氣動阻尼aerodynamic damping ratio 氣動阻尼比mode aerodynamic damping ratio 模態氣動阻尼比 返回 aerodynamic damping