Digital trunk system. Yeah. Jack. Yeah.

数字中继系统。对。杰克。你说。

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The task is a portion of the pre-reaserch project of the digital trunk system for military.

本课题即是军用数字集群通信系统的预研项目的一部分。

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Digital trunk mobile system is the advanced level of the special mobile communication, and it has attracted attention abroad.

数字集群移动通信系统作为专用移动通信的高级阶段，受到了广泛的关注。

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