Trust is necessary to valid communication.
信任是有效交流的必要条件。
A reliable communication link is the key to realize airborne GPS data valid transmission.
可靠的通信链路是实现机载GPS信息有效传输的关键。
The system provides a valid measure for huge capacity broadcast and mobile user communication education.
详细论述了系统的软件设计与实现，为大容量信息播发和移动用户通信提供了有效手段。
The system provides a valid measure for huge capacity broadcast and mobile user communication education.
详细论述了系统的软件设计与实现，为大容量信息播发和移动用户通信提供了有效手段。
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