Proper and correct selection of technical data in the design of the vacuum system provides an important and necessary prerequisite for the good performance of the wet end of papermachine.是什么意思_Proper and correct selection of technical data in the design of the vacuum system provides an important and necessary prerequisite for the good performance of the wet end of papermachine.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句