Guidance on the classification and design of plastics piping systems used for renovation.
翻新用塑料管道系统的分类和设计指南。
The classification of piping stress, stress development factors and stress release method are introduced.
论述了管道应力分类、产生的因素以及应力消除方法。
This paper introduces the concept of the pressure piping, discusses on the classification of the pressure piping, and expounds the concrete methods for the stress analysis of the pressure piping.
介绍了压力管道的概念，讨论了压力管道的分类，论述了压力管道应力分析的具体方法。
(Polyvinyl Chloride) PVC conforming to ASTM D-1784, Classification 12454-b, formerly designated Type I, Grade 1, is the most frequently specified of all thermoplastic piping materials.
(聚氯乙烯)PV C符合ASTMD- 1784，类别12454 -B标准，以前定义为类别i，等级1，是所有热塑塑料管道材料中应用最广泛的材料。
(Polyvinyl Chloride) PVC conforming to ASTM D-1784, Classification 12454-b, formerly designated Type I, Grade 1, is the most frequently specified of all thermoplastic piping materials.
(聚氯乙烯)PV C符合ASTMD- 1784，类别12454 -B标准，以前定义为类别i，等级1，是所有热塑塑料管道材料中应用最广泛的材料。
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