In general, the construction of the line can be completed in a small paragraph. Then install the equipment bracket, installation equipment.
一般情况，弱电施工在线缆敷设完毕即可高一小段落。接着该安装设备支架，安装设备。
Give a more detailed description of the design principle that used protection with dug pile in transformation of existing railway bridge and culvert construction in parallel paragraph.
施工为例，较为详细地介绍了铁路既有线改造工程并行段桥涵施工中采用挖孔桩防护的设计原理。
应用推荐