化学变化是改变粒子结构、形成新物质的一种变化。
A chemical change is one in which the structure of particle is changed and a new substance is formed.
化学变化是一种改变粒子结构、形成新物质的一种变化。
A chemical change is one in which the structure of particles is changed and a new substance is formed.
最后，第10章提供了处理多粒子结构负能量问题的一个统一框架。
Chapter 10 finally provides a consistent framework for dealing with the negative energies in a many-particle formalism.
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