acceleration leg加速段accelerationn.加速；促进；加速度Acceleration solvent extraction加速溶剂萃取acceleration responding signals加速度信号acceleration-sensitive switch加速敏感开关acceleration control law design加速控制规律设计acceleration response detection车-桥系统Acceleration in Feet per Second英尺/秒加速度acceleration voltage alternation加速电压切换法acceleration type PCG microphone加速型心音图微音器acceleration-deceleration test加减速度试验acceleration of Doppler- shift多普勒一次变化率