Through comparasion test, we decided to ad-here a rubber disc on the valve as a elestic buffer and ob-tained good effect in several pumping stations.是什么意思_Through comparasion test, we decided to ad-here a rubber disc on the valve as a elestic buffer and ob-tained good effect in several pumping stations.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句