Within a switching system, a connection or circuit between inlets and outlets of the same or different switching networks. An intraoffice trunk.
在交换系统中，同一或不同交换网络的引入线和引出线之间的连接部分或电路。又称局内中继线。
This paper introduces the basic theory, configuration and the technical characteristics of the parameter simulation device for trunk circuit.
介绍了轨道电路参数模拟装置的理论依据、方案和技术特征。
The analysis and design of AM cable trunk target in close circuit TV system is discussed in the paper.
介绍了有线电视网中AM光缆干线传输综合指标的分析与设计。
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