annual mean

• 累年平均,年平均

annual mean的用法和样例：

例句

1. The latter factor drops out when average annual temperatures are considered.
   若考虑年平均温度，则可将后一个因素除掉。
2. Although the prevalence increased with age, the annual change in mean refractive status was slower in the schoolchildren of mountain aborigines.
   尽管年龄愈高，近视盛行率愈高，但原住民学童之年平均屈光变化似乎较缓慢。