先前在讲行星时,我们讨论过这个，我们讨论的是,匀速圆周运动，而且我们评估了,向心加速度。
We have discussed that earlier when we dealt with the planets, and we dealt with uniform circular motions, and we evaluated the centripetal acceleration.
只要它们以向心方向保持足够迅速的移动，它们就拥有活的形体，但是随着它们倒转，向外以离心方向运动，它们就丧失了形体。
As long as they move fast enough in a centripetal direction, they have living bodies, but as they reverse to the outward, centrifugal direction, they lose their bodies.
详细讨论了当向心力突然增大后，原来作匀速圆周运动的小球其运动轨迹的变化情况，证明了小球将作螺线运动。
A small ball is making circular motion at the uniform velocity, the centripetal force has suddenly increased, it is proved that the small ball will generally make a spiral motion.
研究利用等动测力及康复系统对膝关节损伤的女运动员进行等速向心训练。
The present study aims to apply the isokinetic training in the female athletes who is wounded in the knee joint.
向心性肥厚组，心室形态趋向球形改变，室壁中间段与心尖段运动速度趋近于一致。
In concentric hypertrophy the ventricular geometry changed to be spheric, the velocities of the middle and apical segments tended to be equal.
当轴承套圈或垫圈相对旋转时(向心或推力轴承)或当滚动元件在滚动方向运动时(直线轴承)，作用在轴承上的负荷。
When the bearing rings or washers relative rotation (radial or thrust bearings) or when the rolling elements in rolling direction of movement (linear bearings), the role of the load on the bearings.
发现带电粒子以电荷群的作用力为向心力做圆周运动时，有一常数乘以频率等于带电粒子的动能。
It finds that there is a constant multiplied by frequency which is equal to the kinetic energy, when a charged particle does circular motion for the centripetal force product by the charge group.
发现带电粒子以电荷群的作用力为向心力做圆周运动时，有一常数乘以频率等于带电粒子的动能。
It finds that there is a constant multiplied by frequency which is equal to the kinetic energy, when a charged particle does circular motion for the centripetal force product by the charge group.
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