英语语法分析

Superimposed upon the trend is the interannual variability.

叠加这种趋势变化之上的是年际变化。

The results show that the runoff variations of interannual and seasonal are various.

结果表明：不同类型小流域径流的年际和年内变化不同。

There is a considerable connection between ENSO and the interannual variations(QBO)of summer monsoon rainfall.

ENSO 与东亚夏季风降水的年际变化以及准二年周期有着明显的联系。