Should be used for well drilling sum finish well system, well drilling Sitong, Christmas tree, Oil pipe head sum administer remit.

应用于钻井和完井系统、钻井四通、采油树、油管头和管汇。

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For example, if you want to count only the words in the first five text files in the directory, you can use a pipe (|) to hook the wc and head commands together.

例如，如果您仅希望计算该目录下的前5个文本文件的单词数，那么可以使用竖线(|)将wc和head命令连接起来。

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Using pliers or a pipe wrench to tighten a bolt or nut. This may scar the bolt head or nut creating a sharp edge.

使用钳子或管扳手拧紧螺栓或螺帽。这样可能会刮伤螺栓头或螺帽，从而形成尖锐的边缘。

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He ended up on a circus sideshow traveling through the country with the big steel pipe that went through his head.

最终,在一个全国巡游的马戏团里,大钢管打烂了他的脑袋,结束了他的生命

耶鲁公开课 - 心理学导论课程节选

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

It's not like having a steel pipe hit you on the head.

CNN: OSHA pushing for new regulations aimed at preventing repetitive motion injuries

We understand the urge to take a quick snap of a show to prove that you were there -- all those "likes" and comments on Instagram are like the crack in the aforementioned crack pipe -- but must you hold your iPhone above your head the entire show, blindly shooting into the ether?

CNN: Technology and concerts: What not to do

Next head to the main ring, where a typical timetable may consist of falconry displays, Cumberland wrestling, pipe-and-drum performances and pony-and-trap contests.

BBC: The great British country show: A cultural eye opener