A study of the characteristics of groundwater circulation and the formation of bitter and saline groundwater in the Qingshuihe Basin in the southern Ningxia是什么意思_A study of the characteristics of groundwater circulation and the formation of bitter and saline groundwater in the Qingshuihe Basin in the southern Ningxia在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句