Let this be the direction of increasing x, and so before the collision I have a certain amount of momentum.
方向为x正轴方向，在碰撞前，它有一定动量。
This article discusses the construction of geometrical modeling in simulation training system for portal crane and the implementation of collision detection by the use of fixed direction hull (FDH).
该文介绍了门式仿真培训系统中系统几何模型的建立过程以及利用固定方向包围盒(FDH)实现系统的碰撞检验。
The research indicates that the controlling strategy is optimal when they have the same acceleration direction, and the differential games are efficient in dealing with collision problem.
研究表明，追逃双方机器人的控制作用使得彼此的加速度方向一致时，双方都取得最优控制策略，同时也证明了微分对策方法在处理碰撞问题时的有效性。
Scattering: in physics, the change in direction of motion of a particle because of a collision with another particle.
散射：物理学中一个粒子与另一个粒子碰撞时运动方向发生改变的现象。
The speed of particles before collision will determine whether particles will move along the direction of sound waves, against direction of the sound waves or will vibrate in their original position.
颗粒碰撞前的速度大小将决定颗粒碰撞后是沿声波方向运动还是逆声波方向运动或是停留在原地振动；
Direction of turning, it will automatically open lamp tell each other their driving route, to avoid a collision.
转弯的时候，它会自动打开方向灯告诉对方自己行驶的路线，避免撞车。
By synthetic analysis of data concerned this region is determined to be compressed from NNW-SSE direction, due to the collision between the Phillippine Sea plate and the Eurasian plate.
通过综合分析表明，本区大致承受北北西—南南东方向的挤压作用，即菲律宾海板块与欧亚 板块碰撞挤压的结果。
The models of collision speed and collision Angle relating to horizontal curve radium and its direction, hard shoulder width and operation speed are derived by regression.
通过回归分别建立了碰撞速度、碰撞角度与平曲线半径及转向、运行速度、硬路肩宽度的相关模型。
The collision between atoms and electrons moving in a definite direction with the additional static electric field is considered to be the primary reason for the result mentioned above.
从微观机制上分析推断：外加电场使非稳态等离子体中的电子作定向运动，加剧电子与原子之间的碰撞是上述结果的主要原因。
The collision between atoms and electrons moving in a definite direction with the additional static electric field is considered to be the primary reason for the result mentioned above.
从微观机制上分析推断：外加电场使非稳态等离子体中的电子作定向运动，加剧电子与原子之间的碰撞是上述结果的主要原因。
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