This guide rail for the seal oil bath type,the service life comparatively generally opens the type to bepossible to lengthen above 5 times.是什么意思_This guide rail for the seal oil bath type,the service life comparatively generally opens the type to bepossible to lengthen above 5 times.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句