The calculating formula of the telescopic booms strength , stiffness and stability are deduced and numerical values of the strength ,stiffness and stability of QYS0 crane boom are calculated.是什么意思_The calculating formula of the telescopic booms strength , stiffness and stability are deduced and numerical values of the strength ,stiffness and stability of QYS0 crane boom are calculated.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句