To steady the Yellow River channel into the sea and to delay the floodtime of present Qingshui gully, the artificial outlet of Qing 8 was realized.是什么意思_To steady the Yellow River channel into the sea and to delay the floodtime of present Qingshui gully, the artificial outlet of Qing 8 was realized.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句