The question of the nature of light , wave or particle, had long been settled decisively in favor of waves.
关于光的本性是波抑或是粒子的问题早就以倾向于波而明确地解决了。
It's necessary to pay attention to the unity of time and space for each particle velocity, when analysing the question for particle system use momentum conservation law.
利用动量守恒定律分析质点组问题时，必需注意质点组各质点速度的空间统一性和时间统一性。
Take the recent question of whether neutrinos, a type of near-massless subatomic particle, can travel faster than light.
请看最近的一个热点问题：中微子的传播速度能否超过光速？ 中微子是种亚原子粒子，几乎没有质量。
Discussed moving equation of bring electric particle in even magnitism field. Conclusion is spiral line for moving trade in even magnitism field. Objective is to deepened understand question.
用微分方程的严格解，讨论带电粒子在均匀磁场中的运动轨迹，得出带电粒子在均匀磁场中的运动轨迹是螺旋线的结论，目的是加深带电粒子在磁场中运动问题的理解。
Discussed moving equation of bring electric particle in even magnitism field. Conclusion is spiral line for moving trade in even magnitism field. Objective is to deepened understand question.
用微分方程的严格解，讨论带电粒子在均匀磁场中的运动轨迹，得出带电粒子在均匀磁场中的运动轨迹是螺旋线的结论，目的是加深带电粒子在磁场中运动问题的理解。
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