Should be used for well drilling sum finish well system, well drilling Sitong, Christmas tree, Oil pipehead 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。
2
He ended up on a circus sideshow traveling through the country with the big steel pipe that went through his head.
最后，他带着那根穿过他脑袋的大钢管，参加了一个全国巡演的马戏团表演。
3
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.