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In physics and chemistry, a degree of freedom is an independent physical parameter in the formal description of the state of a physical system. The set of all states of a system is known as the system's phase space, and the degrees of freedom of the system are the dimensions of the phase space.

In physics and chemistry, a degree of freedom is an independent physical parameter in the formal description of the state of a physical system. The set of all states of a system is known as the system's phase space, and the degrees of freedom of the system are the dimensions of the phase space.

在物理和化学领域中，'''<font color="#ff8000"> 自由度Degree of freedom</font>'''是对物理系统状态形式描述中的独立物理参数。系统所有状态的集合称为系统的'''<font color="#ff8000"> 相空间Phase space</font>'''，系统的自由度是相空间的维数。

在物理和化学领域中，'''<font color="#ff8000"> 自由度Degree of freedom</font>'''是对物理系统状态形式描述的独立物理参数。系统所有状态的集合称为系统的'''<font color="#ff8000"> 相空间Phase space</font>'''，系统的自由度是相空间的维数。