The winding form of steel rope and the design of weel curve on frictional wheel mechanism to au-romaticly control air valve is introduced.是什么意思_The winding form of steel rope and the design of weel curve on frictional wheel mechanism to au-romaticly control air valve is introduced.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句