ground rainfall造句

• Rainfall is started mainly in cold portions . microphysics for ground rainfall consists of low - level warm portions in which precipitating particles are produced , growing through collision with cloud water and when descending into the warm portions below , ice - phase particles melt and continue to grow by collecting cloud water there . 4 )
  降水主要以冷雨过程发动，地面降水形成的微物理过程分别为低层暖云过程产生并通过碰并云水增长、降落到暖区的冰相粒子融化和融化的冰相粒子在云的暖区收集云水继续长大等三部分组成。