Analysis the dynamic of the reverse gear shaft and review the strenghth of the material.Explain the feasibility, work safety and justifiability of the reverse gear shaft scientifically.是什么意思_Analysis the dynamic of the reverse gear shaft and review the strenghth of the material.Explain the feasibility, work safety and justifiability of the reverse gear shaft scientifically.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句