E. g. : instrument processing and cutting of metal signs, ironing boards, atomic stamps, carbon plate in battery, copper stamp and small artworks.
2
如果你们读第一章，你们会发现不同的原子组的定义，从底下开始有一些基本原理，往上还有复杂的物质。
So, if you look in chapter one, you will find these definitions for different atomic groupings starting down here with the elements and moving through up through complex matter.
3
最后的章处理相同粒子的对称性和对他的他们的申请原子，周期表和双原子的分子。
The final chapter deals with identical-particle symmetries and their application to the he atom, the Periodic Table and diatomic molecules.
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