Is it a solar term for heavy snow to send horses to Dongyang?

Sending horses to Dongyang is the solar term of heavy snow. According to the relevant information, it is convenient to write about the difficulties of studying in Song Lian in winter, because only in winter will there be severe cold, the inkstone is hard, the fingers can't bend and stretch, the snow is several feet deep, and the skin is chapped without knowing it. These descriptions are all about the solar terms of heavy snow.