Heart, became almost deprived of his senses and slow, middling and quick motion.
心，成为多少乎剥夺了他的理智和缓慢，中等和快速的议案。
Looking for a simple, quick demonstration of forces and acceleration in circle motion?
看过一简单、快速的演示圆周运动中力和加速度的变化吗？
Looking for a simple, quick demonstration of forces and acceleration in circle motion?
看过一简单、快速的演示圆周运动中力和加速度的变化吗？
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