The results showed that the earlier the frost and freezing treatment after heading period of rice carried out, the greater was the influence on rice yield.
初步结果是 ：水稻抽穗后霜冻处理时间越早 ，对水稻产量影响越大 ，并建立了水稻受霜冻害减产预测模型 ；
The influence of different covered depths, thickness of frozen wall, excavating radius, original water content and brine temperature on frost displacement are discussed for horizontal freezing model.
探讨了在水平冻结情况下覆盖厚度（埋深）、冻土壁厚度、开挖半径、含水量和盐水温度对冻胀位移的影响。
Although a few Agaves and Sedums might take a few degrees of frost, they will not tolerate freezing temperatures.
虽然有些龙舌兰和景天属多少能忍耐些轻微的霜降，却并不耐冻。
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