这些粒子的大部分都不能被那时的模型物理学家描述，那时的物理学家的认识是物质由原子构成，原子由原子核及原子核外的电子构成，原子核由质子和中子构成。
Most of them did not fit into the models physicists had at that time, that matter consisted of atoms with neutrons and protons in the nucleus and electrons round it.
任何物质都是由原子构成的。无论是固体、液体还是气体。
Any substance is made of atom. Whether it is solid, liquid or gas.
一切物质，不论它们是气体、液体还是固体，都是由原子构成的。
All substances, whether they are gaseous, liquid or solid, are made of atoms.
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