Second, a frost must be present (ideally for several days in a row), with the temperature ranging somewhere between -13 and -8 degrees Celsius (or about 8.6 and 17.6 degrees Fahrenheit).
第二，要处于结霜的状态(理想的是连续几天持续这状态)，温度大概处于- 13到- 8摄氏度。
2
Disasters from low temperature, frost and snow made a total direct economic loss of 159.5 billion yuan with a death roll of 162.
全年低温冷冻和雪灾造成直接经济损失1595亿元，死亡162人。
3
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.