The effects of three centres, i.e. aerodynamic centre, centre of gravity and centre of torsion, of blade on fluttering have been studied.是什么意思_The effects of three centres, i.e. aerodynamic centre, centre of gravity and centre of torsion, of blade on fluttering have been studied.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句