反射镜作为系统中的重要光学元件，也是激光通信中的关键技术，为整个通信系统的像质提供了保证。
As one of the most important parts in optical components, reflect-mirror was the key technology in laser communication and provided clear imaging for the system.
而作为移动通信核心技术之一的数字调制技术是实现高速、高效的移动通信系统的重要保证。
As the core mobile communications technology, one of the digital modulation technique is to achieve high-speed, highly efficient mobile communication system and an important guarantee.
在组通信系统中，成员关系的维护是一个非常重要的模块，它保证消息的次序传递和虚同步。
In group communication system, group membership service is a very important module that guarantees the ordering delivery of messages and virtual synchronization.
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