This research topic is an integral part of the "research on the Heat-stewed BendTechnology of X80 Pipe Steel" by CNPC.

本课题作为中国石油天然气集团公司“X80级管线钢管热煨弯管技术研究”的一部分。

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The S135 drill pipe steel was selected as the research object in the paper; the oxygen corrosion and corrosion fatigue be.

本文选用S135钻杆钢作为研究对象，进行钻杆钢的氧腐蚀和腐蚀疲劳行为研究。

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The milling process of X65 pipe steel and the inspection data of mechanical properties (tensile strength, DWTT and hardness)are introduced in detail.

详细介绍了X65卷板的生产流程和有关力学性能（拉伸性能、冲击性能及硬度）的检验结果。

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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

Lone Star Technologies, a Dallas producer of steel pipe used in oil wells, fits the bill.

FORBES: Roughneck stocks

They know that steel pipe cased in concrete, when engineered correctly, is not going to leak chemicals into their water.

FORBES: Energy's Latest Battleground: Fracking For Uranium

Luxembourg-based Tenaris sells seamless steel pipe products to oil and gas companies.

FORBES: Magazine Article