This paper made a failure analysis of a mechanicaI seal of pump for Orthoxy1 ene as to its breaking down under thernanufacture of self.是什么意思_This paper made a failure analysis of a mechanicaI seal of pump for Orthoxy1 ene as to its breaking down under thernanufacture of self.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句