Radiation frost occurs on clear nights with little or no wind when the outgoingradiation is excessive and the air temperatures is not necessarily at the freezing point.
辐射霜出现在几乎无风的晴朗的夜晚，此时向外辐射过多，同时气温并不一定在冰点。
2
The method of earthquake precursor and earthquake prediction were made a brief introduction using the data of outgoing long-wave radiation, received by the satellite.