然而现在应该把什么看作是曲线运动的线索呢？

And now what is to be regarded as the clue to curvilinear motion?

这一方案充分利用了PC机的资源,可以使电机复杂的曲线运动得到很好的解决.

The project made use of PC to perfect the curvilinear motion of motor.

你才是沿着曲线运动的人。但从你的角度看，球变成了曲线运动。

You were the one who was following a curving path, but, from your point of view, the ball appears to curve.

直线运动时马体应当始终保持正直,曲线运动时马体应当保持正确的曲绕.

The horse should always remain straight straight lines and correctly bent on curved lines.

仿真实验表明，无论动态噪声做简单直线运动还是变速曲线运动，该方法都具有良好的跟踪性能。

Simulations show that this method is insensitive to the motions of the target and has the potential for practical applications.

许多有意思的非线性演化方程都与曲线运动有着密切的关系。

Many interesting nonlinear evolution equations have been shown to be related to motions of curves.

由于参照系—地球—是旋转的，所以在静止参照系中应是呈直线运动，在地球上的观测者看来就成为曲线运动。

Since this frame of reference-the earth –is rotating, motions that would be straight in a stationary frame of reference appear curved to the observer on earth.