The discharge of Kelly filter leaves were changed into leaf sandwic h discharging from the original discharge around the seams,it has also increased t he filtering area relatively.是什么意思_The discharge of Kelly filter leaves were changed into leaf sandwic h discharging from the original discharge around the seams,it has also increased t he filtering area relatively.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句