ground frost中文什么意思

地面霜

永久冻土

• ground:     ground2 n. 1 ...
• frost:    n. 1.弗罗斯特〔姓氏〕。 2.R ...
• there is frost on the ground:    地上有霜

例句与用法

1. This warning is issued whenever ground frost is expected to occur on high ground or inland in the new territories
   预料高山上或新界内陆地区可能出现地面霜时，即发出此项警告。

百科释义

Ground frost refers to the various coverings of ice produced by the direct deposition of water vapor on objects and trees, whose surfaces have a temperature below the freezing point of water (0?°C, 32?°F).