采用在初始位置延迟最小时间的方法，获得了双机器人时间优化的无碰撞轨迹。

Adopting the method of delaying minimum time in initial position, the time-optimal and collision avoidance track of dual robots was obtained.

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利用紧束缚模型，通过对不同初始条件下的碱金属团簇的碰撞研究，得到形成大分子团簇的可能性。

Using the tight binding molecular dynamics model (TBMD), Na cluster collision processes have been studied at the different initial conditions.

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分析了活塞杆与铲头碰撞点的选择方法和氮气室的初始压力和初始容积的确定方法。

Analyse choice method of collision point of cylinder and shovel head and confirm initial pressure and volume of nitrogen chamber.

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