With the read GDP growth rate standing at a phenomenal 11% last year,China is launching itself in a new era.

问题描述:

With the read GDP growth rate standing at a phenomenal 11% last year,China is launching itself in a new era.
请问这里的standing在句中怎么理解呢,做什么的呢?
能不能分析一下此句的结构呢?

在,表示在什么位置.