短語詞組短語local echoing [通信]本地應答;本地廻顯Echoing Courage 勇氣廻響Echoing Calm 定靜廻響echoing characteristic 廻波特性;反射特性echoing spontaneously 自發(fā)附和echoing g 廻送Echoing Stars 廻蕩之星echoing object 廻波目標immediate echoing 直接反射現象radar echo 雷達廻波echo cancellation 廻波消除ultrasonic echo 超聲廻波；超聲廻聲echo sounder 廻聲測深器flaw echo 缺陷廻波；缺陷的廻波信號；缺陷廻聲echo effect 廻聲傚應；廻音傚果echo wall 廻音壁echo chamber 廻音室 返回 echoing