单词	double echo
释义	double echo 双回波
随便看	double deflation approach double deflection grille double deflection indicator tube double degree double degree of freedom gyro double-delay canceller double delay canceller double-delay feedback canceller double delay line double-delta aircraft double-delta-connection double delta connection double-delta connection double-delta connexion double delta winding double delta wing double-delta wing double demy double denial double denim double dense recording double-dense recording double density double-density Double Density CD 缘缙缚缛缜缝缞缟缠缡外购外贸外贼好捉外资外赠外路外踝外轮外边外迁