The point at which the solid and the liquid are in equilibrium is called the freezing point.
固体和液体的平衡点叫做冰点。
《牛津词典》
2
And turning the crank at equilibrium, being equal between the solid phase and the liquid phase.
在平衡态固相和液相的化学势相等，固相和气相一样。
3
But again, if you know all the energies of the possible states, in the solid, in the liquid and the gas, statistical mechanics shows us that we can calculate the equilibrium between those.