The reverse flow region is observable near the pipe wall.

管壁附近存在明显的回流再附区；

youdao

By using computer to calculate, we find the fluid flush on the curved pipe wall is also oscillatory.

本文还通过计算机计算，得知流体对弯管两侧的冲刷力也是振荡的。

youdao

This paper introduces a new wall protection method for drilling loose strata casing pipe wall protection.

本文介绍一种新的钻探松散地层护壁方法——套管护壁“三板斧”。

youdao

The corrosive nature of the ground soil and pressures from a nearby brick wall and telecom unit may have caused a fracture in the cast iron mains pipe, the HSE said in its report.

BBC: Police awards for Shrewsbury gas explosion rescue