1. a position some distance below the top of the mast to which a flag is lowered in mourning or to signal distress. 
   旗帜降到离杆顶还有一段距离的地方以表示纪念或哀悼。
2. an electronic signal that has been reflected back to the radar antenna; contains information about the location and distance of the reflecting object. 
   反射回雷达天线的电子信号；携带反射物体的位置和距离的信息。
3. The maximum extent or distance limiting operation, action, or effectiveness, as of a projectile, an aircraft, a radio signal, or a sound. 
   射程，音程导弹、飞行器、无线电信号或声音等所能达到的限制运行、行动或效果的最大范围
4. detection of weak signal 
   微弱信号检测
5. discrete random signal processing 
   离散随机信号处理

查看更多例句 相关情景会话

• 1. 代码间距
  signal detector 信号检出器...signal distance 代码间距...signal distortion 信号失真
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• 2. 信号距离
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• 3. 通信距离
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