基本解釋[電子、通信與自動控制技術(shù)]信號傳播速度英漢例句雙語例句The paper studies the concepts of phase velocity and group velocity on electromagnetic wave propagation and discusses the relation between signal conveyance and energy conveyance.文章研究了電磁波傳播的群速與相速概念，論證了信號傳送與能量傳遞的必然聯(lián)系。signal propagation velocity更多例句專業(yè)釋義電子、通信與自動控制技術(shù)信號傳播速度