mean spring range

例句：

1. 1.The mean spring range is around 20 degrees Celsius.
   平均春季范围大约在20摄氏度。
2. 2. The weather forecast predicts a mean spring range of 15 to 20 degrees Celsius.
   天气预报预测平均春季范围为15到20摄氏度。
3. 3. The farmers are concerned about the mean spring range, which could affect their crops.
   农民们担心平均春季范围，这可能影响他们的庄稼。