However,V in acid coal mine drainage can not be removed with the increase in pH,on the contrary,the contents of V increase with the increase in pH.是什么意思_However,V in acid coal mine drainage can not be removed with the increase in pH,on the contrary,the contents of V increase with the increase in pH.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句