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- A geometric property of finite lattices is derived from the moment of inertia of a system of particles about a fixed axis. 从质点系绕定轴转动的转动惯量出发,导出有限点阵的一种几何性质.
- The change of the moment of momentum of a system of particles with respect to the center of mass only involves the external forces acting on the system, not the internal forces. 质点系相对于质心和固定点的动量矩定理,具有完全相似的数学形式,而对于质心以外的其它动点,一般并不存在这种简单的关系。
- Conditions which limit the motion of a particle or of a system of particles are called constraints of motion. 当约束对质点或质点系的运动情况进行限制时,这种约束条件称为运动约束。
- 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。
- 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 3D model building system of compressive comminution of particle beds by adopting of VB language, Solidworks 2001 plus and SQL server data base. 系统采用vb语言,连接Solidworks2001plus二次开发,结合SQLserver数据库,开发了一套层压破碎三维建模系统。
- A system of optical components that magnifies. 能起放大作用的一组光学元件
- 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
- 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
- A law court or system of law courts; a judiciary. 司法,司法系统法庭或法庭制度; 司法系统,司法部
- Further topics include kinematics, particle dynamics, motion relative to accelerated reference frames, work and energy, impulse and momentum, systems of particles and rigid body dynamics. 更进一步探讨运动学,质点动力学,于加速坐标系上之运动行为、功、能量、冲量、动量和质点系统与刚体动力学。
- The monetary system of some countries used to be based on gold. 过去有些国家的货币制度是金本位制的。
- Britain changed to a metric system of currency in 1970. 1970年,英国已改用公制货币。
- A new system of taxation will be brought into effect next year. 新的税收制度将于明年实行。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries