A STUDY ON THE OPERATION SCHEME FOR THE SANDS DEPOSITION TREATMENT IN THE IRRIGATION REGION AT THE LOWER REACH OF YELLOW RIVER是什么意思_A STUDY ON THE OPERATION SCHEME FOR THE SANDS DEPOSITION TREATMENT IN THE IRRIGATION REGION AT THE LOWER REACH OF YELLOW RIVER在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句