他研究了摆线 、 圆外旋轮线和四点圆的旋轮线的几何性质.He investigates geometrical properties of cycloids , epicycloids, and hypocycloids.由于这个缘故,摆线又叫做等时曲线.For this reason the cycloid is called the tautochrone.分析摆线钢球行星传动减速器的振动特性.The vibration perfo...
Essentially fractures can cut most types of carbonate fabric.实质上裂缝可割切大多数类型的碳酸盐组织.Fractures of the nose may be associated with septal tractures and hematomas.鼻骨骨折可伴有中隔骨折和血肿.Fractures often impose a greater need for strict...
Execute the law after personnel is registered to its, their demobilization.执法人员对其登记后, 将他们遣散.He started to write after demobilization.从部队复员后,他就开始了自己的笔耕生涯....