What does the rain weather system mean?

Rainfall weather system refers to the atmospheric movement system with certain spatial structure characteristics of meteorological elements such as temperature, pressure or wind when it rains. Rainfall means rain, and weather system refers to the atmospheric motion system with certain spatial structure characteristics of meteorological elements such as temperature, pressure or wind. Rainfall weather system refers to the atmospheric movement system with certain spatial structure characteristics of meteorological elements such as temperature, pressure or wind when it rains.