盲距 meaning in Chinese

blind ranges

Since the echo signals are partly received , this radar system has detected the target adopting the processing mode of blocking echo signal before and after , and the problems of the isolation between transmitter and receiver and blind range are solved
该体制雷达采用前后截断回波信号处理方式，当接收部分回波信号后就对目标进行检测，解决了收发隔离和盲距问题。