analog communication system

例句：

1. 1. The new digital communication system is expectedto improve network efficiency significantly.
   新的数字通信系统预计将显著提高网络效率。
2. 2. The analog communicationsystem was replaced by the digital one dueto its inefficiency.
   由于其效率低下，模拟通信系统被数字系统所取代。
3. 3. In this project, we willuse an analog communication system to transmit dataover a long distance.
   在这个项目中，我们将使用模拟通信系统来在远距离传输数据。