Due to the total angular momentum conservation to the system centre of mass,the free-drifting spacecraft system becomes a nonholonomic one without considering the external forces moment acting on it.是什么意思_Due to the total angular momentum conservation to the system centre of mass,the free-drifting spacecraft system becomes a nonholonomic one without considering the external forces moment acting on it.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句