If you were content to remain at rest or in uniform motion relative to an unaccelerated frame of reference, no force would be needed.
如果你愿意相对于一个非加速的参照系去保持静止或匀速运动，并不需要有力作用。When a body is at rest, or in motion with constant velocity, the external force acting upon it are in equilibrium.
当物体处于静止或作匀速运动时，作用在其上的外力是平衡的。A rotating device in a tape recorder used to drive the recording medium at a constant speed.
磁带记录器中用来驱动记录介质作匀速运动的传动装置。A new error-parameter curve for motion blurring is presented , and an automatic method for estimating the degraded parameter is addressed.
针对匀速运动降晰的情况，提出了一种新的误差-参数曲线法，并依据这种曲线提出了一种点扩展函数的自动估计算法。It is of great significance to discuss the nature of the electromagnetic field of a moving charge.
匀速运动点电荷的电磁场对理解电磁场的基本性质具有非常重要的意义。Uniform motion is only hypothetical.
匀速运动只是一种假设性的运动。The house head movement of the pumping system is mainly uniform, except the alternation period of down and upper strokes.
除在上下冲程交替时外，这类抽油机悬点的运动接近匀速运动。Non-circular gear is used to transmit the non-uniform motion which is between the two axles.
非圆齿轮可用于两轴间的非匀速运动传递，实现变传动比传动。and at the same speed unless it is influenced by a force.
在不受外力影响的情况下作匀速运动。