Research on the Pertinency of Crystallinity, Cooling Technique and Friction Property of Solid Lubricant Based on Polytetrafluoroethylene是什么意思_Research on the Pertinency of Crystallinity, Cooling Technique and Friction Property of Solid Lubricant Based on Polytetrafluoroethylene在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句