Rain in winter can have serious impacts when it falls on an existing snowpack or on frozen ground.
冬季下雨会产生严重的影响，它将使地面上有积雪或结冰。
Buried depth of rain water pipe should be buried in the frozen line, consideration should be given to the upper part of the load pipeline.
埋地雨水管的埋没深度应在冰冻线以下，应考虑管线上部的荷载。
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