During the construction, we should consider firstly how to make use of all medium resources to improve the signal quality of the main classroom.
在建设过程中，必须首先考虑充分利用各种媒体资源，提高主课堂的信号质量。
This paper introduces some problems existing in the process of railway signal cable construction, and in the light of these problems, advances some corresponding improving methods.
主要介绍了铁路信号电缆施工过程中存在的一些问题，并针对这些问题提出了相应的改进办法。
Inside and outside cable and circuit laying out, guarding, connection, switch-in, leading out and conductor arrangement of internal signal room on construction site.
工程地点内信号室内外电缆及电线路的敷设、防护、接续、引入、引出、配线等。
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