-
运动速度可采用恒速，也可以通过步进电机控制变速运动方式。
The speed can be constant or be changed by the controlling of step motor.
youdao
-
它的二阶导数就是这个恒加速度。
The second time derivative is the constant acceleration.
youdao
-
它的二阶导数就是这个恒加速度。
The second time derivative is the constant acceleration.
youdao