An even more important fact is that these symmetries implicate a large number of conservation laws at the particle level.
还有一个更重要的事情，这些对称性暗示着大量的守恒定律。
2
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。
3
Equation 1. 1-11 is thus a statement of the conservation of particle probability.