Research on Effect of Harnessing in the Region with Amounted Sediment and Coarse Sediment on Water Resources in the Lower Yeellow River是什么意思_Research on Effect of Harnessing in the Region with Amounted Sediment and Coarse Sediment on Water Resources in the Lower Yeellow River在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句