precipitation in the form of pellets of ice and hard snow.
冰雹以冰和硬雪块颗粒的形式下落
The treatment of metal or the separation of metal from ores and ore concentrates by liquid processes, such as leaching, extraction, and precipitation.
水冶金术通过液体过程, 象过滤, 提炼, 沉淀等方法处理金属, 从矿石中或矿石浓缩物中分离出金属
There will be precipitation on northern hills tonight.
今夜北部山区有降雪。
