precipitation normal

• 降水量正常值

precipitation normal的用法和样例：

例句

1. I agree with the chairman that the figures are lower than normal.
   我同意董事长的看法，这些数字低于正常值。
2. This study was conducted to evaluate the normal AROM of each finger joints in young Chinese adults.
   本篇研究的目的在测量年轻人关节活动度的正常值以作为手外伤后手功能恢复的参考值。