双连结构，适合强、弱电一起安装；
Double-gang structure, suitable for connection of both high current and low current;
所得结论对公路双连拱隧道的建设有重要的工程指导意义。
The conclusions we draw can also play a directive role in highway double-arc tunnel construction.
这些研究成果对双连拱隧道的设计与施工具有重要指导作用。
The results can offer references to the design and construction of double-arch tunnel.
这些研究成果对双连拱隧道的设计与施工具有重要指导作用。
The results can offer references to the design and construction of double-arch tunnel.
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