New roads will link the principal cities of the area.
新建道路将连通这个地区的主要城市。
The structure of physical layer, link layer and application layer was applied in field-bus of network control, data was gained through cyclic query of principal and subordinate PC in link layer.
控制网络现场总线采用物理层、链路层和应用层结构。链路层以主从循环查询获取数据。
First, the composition of HF data link LINK-11 and its operating principal are presented.
首先，介绍的是短波数据链link - 11的组成及其工作原理。
First, the composition of HF data link LINK-11 and its operating principal are presented.
首先，介绍的是短波数据链link - 11的组成及其工作原理。
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