1、 Particles represent whole molecules or fluid regions, rather than single atoms, and atomistic details are not considered relevant to the processes addressed.
粒子代表整个分子或流体的区域，而不是单个原子的，并且原子的细节被认为与过程无关。
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2、 Introduction of the representative atoms simplifies the calculation of the atomistic potential energy.
代表性原子的引入，使系统原子势能的计算大大简化。
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