一次，他突然停下来，然后冻结流的一部分绕着走。
Once, he stopped suddenly, and then walked around a part of the frozen stream.
由于考虑了气相和凝相之间转化的效应，因而方程组对于平衡流和冻结流都是适用的。
Because the effects of transformation between the gaseous phase and the condensed phase are included, the system of fundamental equations is applicable to both equilibrium flow and frozen flow.
流被冻结，从十二月到三月。
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