ethylene vinyl acetate tube 醋酸聚乙烯管
ethylene cracking tube 乙烯裂解管
hp ethylene cracking tube hp40炉管高ni
HP40 ethylene cracking tube 乙烯裂解炉HP40炉管
hp 40 ethylene cracking tube 乙烯裂解炉hp炉管
The ethylene cracking tubes pack-carburized in a laboratory(P tube) and carburized during servicing in a cracking furnace (S tube) are studied.
对实验室固体渗碳（P管）和裂解炉运行渗碳（S管）的乙烯裂解管进行了研究。
Finite element analysis is adopted to calculate secondary quench exchanger tube sheet of ethylene plant.
对乙烯装置第二急冷锅炉的管板进行了有限元分析。
The samples are took from the ethylene cracking tube which split and failed before it worked 14,000 hour.
4万小时就开裂失效的乙烯裂解管上取样，进行组织、成份和性能的观察与测定。
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