The process of a pipe production is the following: a round cast workpiece is put onto a hot rolling line where it is cut, heated, stitched and rolled till a pipe of necessary size is ready.

一个钢管的生产流程如下：圆管坯放在要被切割的高温轧制线上，继续升温，穿孔，轧制直到管坯大小基本成型。

youdao

By insulating flange at the junction between the new and old pipe, the long line galvanic cell is "broken up" - the anode (new pipe) is electrically separated from the cathode (old pipe).

在新、旧管子连接处安装绝缘法兰，破坏了长管道的原电池，即：阳极(新管子)和阴极(旧管子)间电断路。

youdao

Open the relevant valves on the oil pipe line and the water pipe line.

打开油管管路和水管管路上有关的阀门。

youdao

This last line that I've read seems itself to have been grated on a scrannel pipe.

我读到的最后一行,听起来似乎它本身被细弱的气管声所激怒了。

耶鲁公开课 - 弥尔顿课程节选

When Palin was Governor of Alaska, the state received money for the oil going in to the pipe line.

FORBES: How Our Largest Corporations Made $170 Billion During Great Recession And Paid No Taxes

More money was in the pipe line from his bank in Chicago.

BBC: [an error occurred while processing this directive]

It was through his involvement in setting up the first drill pipe coating production line sourced from the U.S. that a business opportunity began to emerge.

FORBES: Add Oil! Chinese Drill-Pipe Maker Ventures Into The Middle East