design rain

• 人工降雨

design rain的用法和样例：

例句

1. The plane is able to carry out tasks like making artificial rain.
   这架飞机可以执行人工降雨等任务。
2. The government is using cloud seeding to try to produce rain for farmers, stave off drought and fill water basins.
   而且政府经常用人工降雨来为农民制造降雨，对抗干旱并且填充水流域。