This feature is implemented using the popen system call, which allows one process to open a pipe to another process, either for output or input. In this case we open a pipe to the command.

这一特性是用popen系统调用实现的，该系统调用允许一个进程打开到另一个进程的管道，将管道用于输出或输入。

youdao

Check any pipes that run close to outside walls. Put some fiberglass insulation or rockwool between the pipe and the wall to help keep the cold away from the pipe.

检查靠近外墙的所有管路，并在管路和墙体之间包覆玻璃钢保温层或石棉，以确保低温远离管路。

youdao

To do this, BP has been replumbing and rewiring the blowout preventer, paying particular attention to its choke pipe and the kill pipe.

在此以前，英石油已经给井喷防护器重新布管布线，其中重要的阻流管（choke pipe）和压井管（kill pipe）更是被小心铺设。

youdao

They should get out and clear space around the vehicle's exhaust pipe to prevent the possibility of carbon monoxide poisoning.

VOA: special.2011.01.11

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

Due to an explosion, a metal pipe went through his head like so.

由于一场爆炸,一根钢管刺穿了他的脑袋,就像这样

耶鲁公开课 - 心理学导论课程节选

Mrs Merkel took pains to dispel this idea, turning down a Russian proposal to add a third pipe to the Baltic gas pipeline.

ECONOMIST: Germany and Russia

The joints between the half-pipes have rubber seals to stop the contents leaking, and each half-pipe has a vertical pipe connected to it, to introduce or dispose of the fluid concerned.

ECONOMIST: Monitor

That's when all eyes will turn to the 6-foot-high copper chimney erected atop the Sistine Chapel to pipe out puffs of smoke to tell the world if there's a new pope.

NPR: Conclave To Elect Next Pope Opens Amid Uncertainty