Some improvements of the slippage systems of the daiphragm meter pumps were made based on the damage causes of the daiphragm sheets.是什么意思_Some improvements of the slippage systems of the daiphragm meter pumps were made based on the damage causes of the daiphragm sheets.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句