第一种是管线按“ ”字型方案进行铺设；的翻译：First is a line "-shaped" laying the programme; 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

The first is by pipeline, "" type program for laying;

First is a line "-shaped" laying the programme;

The first kind is the pipeline presses “” the font plan to carry on lays down;

正在翻译，请等待...

First is a line "-shaped" laying the programme;