A tape recording of several dozen voices talking at the same time, used as an antibugging device to make private or secret conversations inaudible to eavesdroppers. 防窃听多声磁带记录了许多同一时刻说话声音的磁带,用作一种防窃听装置使私人的或秘密的谈话不被偷听者听到。
Through the analysis of the problems and accidents of the secondary circuit transformation in the present power system, antibugging measures are used and some solutions are proposed. 对目前电力系统二次回路存在的问题和产生的事故进行了分析,并结合反事故措施,对二次回路改造进行了研究,提出了改造方案。