The internal circles of the Atom mirror the cosmos, at once a law-abiding nucleus of energy, and at the same time the concentric heavenly spheres spinning in the galaxy.
原子的内部轨道是宇宙的真实镜像，一边是遵守规则的能量核，另一边是在星系中旋转的同心球体。
2
A method of internal ballistic calculation for spinning solid rocket motor has been presented in this paper.
提出了一种旋转固体火箭发动机的内弹道计算方法。
3
The method has high accuracy being used to calculate internal ballistic performance of other grain configuration motor and plays a important role in spinning motor design.