求翻译：拥有岷江、大渡河、青衣江和众多中小河流，水力资源理论蕴藏量790万千瓦，经济可开发量670万千瓦，现有电力装机398万千瓦。是什么意思？

正在翻译，请等待...

7,901,000 藏量 tiles are possible whether many medium size or small size flow, waterpower are source law of natures 有岷江 very much fording, blue dress Ewa; is 3,981,000 力装机 tiles existence 6,701,000 quantity tiles.

拥 possession 岷 river, large river crossing and blue robe river harmony 众 multi small-to-medium-sized rivers style, hydraulic power 资 source reason 论 蕴 藏 quantitative 7,901,000 tile, 经 济 yes 开 发 quantitative 6,701,000 tile and 现 possession 电 power equipment desk 3,981,000 tile.

Hug having 岷 Jiang, dadu, blue cloth Jiang sum into 更多中文 Ogawa flow, hydroelectric capital source management discuss 蕴 loaned amount 7901000 tile, 经 cities-has published 6701000 tile amount, currently available power exterior tile 3981000 desk.

输入字符串的格式不正确。