旋转数 meaning in English

rotation number

To increase your rpms , you must increase the angle of your swing
为了要增加你的旋转数/每分钟，你一定要增加你的挥拍角度。
Researchers attached a small object that weighed about the same as an araneau diadematus spider to three types of thread and gave it a spin . they twisted the weight though several 90 - degree rotations and recorded how long it took for the thread material to return to its original position
并将重量大致与一只十字圆蛛的体重相当的物体分别系在这三种不同的丝线上，在物体旋转数周后，记录下丝线恢复原状所需要的时间。
In order to prove the existence of the periodic boucing solutions , firstly we will introduce a new coordinate transformation , transform the system from right half plane to the whole plane . and give the relation of the eigenvalues of hill ' s equation and the rotation numbers , using this approach and pioncar - birkhoff twist theorem , we proved the existence of the periodic bouncing solutions for asymptotical linear oscillator
对于周期解的存在性证明，我们引进新的坐标变换把右半平面上的碰撞问题转化到整个平面上，给出旋转数与hill方程的特征值的关系，并以此来度量渐近线性振子，再应用pioncar - birkhoff扭转定理得到周期碰撞解的存在性。