用数字信号作为载体传送信息，或用数字信号对载波进行数字调制后再传输的通信方式【信】digital communication

• “九运会”期间，有2万多民兵预备役人员工作在数字通信第一线。

  During the 9th All-China Games, over 20,000 militia reservists worked on the front line of digital communication.

• 他们自主开发的数字通信系统，在公网堵塞时运转不畅。

  The digital communication system that they developed independently does not run smoothly when the public network is clogged.