The Field Bus is a full digital, multiple variable, and bi-directional communication system with multiple stations.

现场总线是用于现场设备和中央控制室控制设备间的一种全数字、多变量、双向、多站的通信系统。

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It was only after the advent of microwave communication technology that it became possible for radio technology to be applied in full scale to the field where cable transmission had been dominant.

只有在微波通信技术出现以后，才能在原电缆传输占主要地位的领域中大规模采用无线技术。

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