For the well completion method by slotted liner, well completion parameters, single slotted liner length and pipe string structure in well completion are optimized.
针对割缝衬管完井方法，进行了完井参数、单根割缝衬管长度、完井管柱结构的优化设计。
This paper presents a method to manufacture pipe elbows by hydro-bulging a tubular single-curvature polyhedron.
介绍了一种利用管状单曲率多面壳体液压胀形制造薄壁管道弯头工艺方法。
The heat measuring method with flow and temperature coefficients suitable for vertical single-pipe series-loop heating system is proposed, and its working principle and characteristics are introduced.
提出适用于垂直单管顺序式供暖系统的流量温度系数热计量方法，介绍了工作原理和特点。
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