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- Research of Force Distribution in a Plane System of Closely Arranged Steel Balls Under the Effort of External Force 外力作用下平面密排钢珠结构中力的分布研究
- A coplanar system of force couples is equivalent to a single couple lying in the same plane, the moment of which equals the algebraic sum of the moments of the component couples. 平面力偶系合成结果还是一个力偶,其力偶矩为各力偶矩的代数和。
- plane system of force 平面力系
- A integrated equation set for solving plane-parallel motion of rigid body was derived, and the conditions of system of forces simplified on the center of mass plane was discussed. 给出了解决刚体平面平行运动问题的一组完整方程,讨论了力系简化在质心平面内的条件。
- A unit of force in the foot-pound-second system of measurement,equal to the force required to accelerate a standard one-pound mass one foot per second per second(approximately0.138 newton). 磅达英尺－磅－秒制中力的单位，相当于使1磅的自由质量得到一英尺每秒加速度的力（大约等于0.;138牛顿每秒）。
- On these islands a system of barter is used. 在这些岛上仍然实行着物物交换的制度。
- A unit of force in the foot-pound-second system of measurement, equal to the force required to accelerate a standard one-pound mass one foot per second per second(approximately0.138 newton). 磅达英尺－磅－秒制中力的单位，相当于使1磅的自由质量得到一英尺每秒加速度的力（大约等于0。138牛顿每秒）
- The two systems of government are polar opposites. 这两种政体正好相反。
- A practitioner of a system of logic. 逻辑学家使用某一逻辑体系的人
- Advocacy of such a system of government. 联邦主义这种政府体制的主张
- I prefer this system of teaching English. 我喜欢这一种英语教授方法。
- A system of roads radiates from the town center. 一个道路网从镇中心向四面八方伸展出去。
- A system of optical components that magnifies. 能起放大作用的一组光学元件
- Nowadays, the analysis on internal force of structure is based on the hypothesis of plane system, but it can not solve the problem of stereoscopy. 现阶段在工程结构内力分析中,主要是基于平面体系的假设,并不能完全解决结构的空间性问题。
- External components for the oil pump pressure lubrication oil lubrication system of forced circulation type. 外部零件润滑为油泵压力供油强制循环式润滑系统。
- A system of pipes, such as those used in plumbing. 管道，管线，管道网一管道系统，如那些用来铺设铅管的
- The bone structure or system of an animal. 骨结构动物的骨构造或系统
- a plane system of closely arranged steel bails 平面密排钢珠系统
- The optical system of the eye stimulate cell of the retina. 眼睛的视觉系统刺激视网膜内的细胞。
- A cable or system of cables for a cable car. 缆索缆车的一根缆绳或索道系统
