The number of thermodynamic variables, such as temperature and pressure, required to specify a state of equilibrium of a system, given by the phase rule.
变化，变异相律提供的，要求详述某一系统的平衡状态的热力学变量数目，如温度和压力
A device that brings about and helps maintain equilibrium.
平衡器可以帮助达到平衡或保持平衡的装置
This pair of scales is not in equilibrium.
这个天平不平衡.
