Because the outflow of the surface runoff from the mountainous area is nearly equivalent to the total water resources of the entire region,a basin system thus also represents a water resource system of the whole drainage.是什么意思_Because the outflow of the surface runoff from the mountainous area is nearly equivalent to the total water resources of the entire region,a basin system thus also represents a water resource system of the whole drainage.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句