passive synchronization meaning in English

被动同步

Design of chaotic secure communication system based on active - passive synchronization
被动混沌同步保密通信系统设计
In the second part , the synchronization prosperity of several chaotic secure communication methods are discussed and compared , from which we think the active - passive synchronization method is the best one for building chaotic synchronization secure communication system
接着讨论混沌同步保密通信实用化存在的关键问题，对几种混沌同步保密通信方案的同步特性作了研究比较，指出主动?被动同步方案保密通信最适合用来建立混沌同步保密通信系统。