物体在一条直线上运动，如果在相等的时间里位移不等，这种运动就叫做变速直线运动。 简而言之，物体运动速度改变的直线运动称为变速直线运动。
在匀变速直线运动的实验中，利用PC机的串行接口来记录运动小车通过测量点的时刻值，以此代替打点计时器计时。
In an uniformly accelerated motion experiment, the moment of a cart passing through the measuring point is recorded by PC's serial interface instead of pointing timer.
电动机与变速齿轮箱相连，使电动机的旋转运动转化为座椅的直线运动。
The motors are coupled to transmission gear-boxes that change rotating motion form the motor into linear motion for the seats.
匀速直线运动模糊亦是动态情况下的一种典型模糊，因为变速的、非直线的运动在某些条件下可以看成是均匀的、直线运动的合成结果。
Uniform linear motion blurring is also a common kind of blurring in motion, because motion of changed speed and non-linear can be regarded as composed result of uniform linear motion.
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