极大增加使用石脑油裂解的乙烯厂的竞争力。
All of those significantly increase competition of naphtha cracking plant.
分析了聚氯乙烯厂电石法生产PVC原有水洗装置存在的问题与不足。
The existing problems and shortages of original PVC water units by calcium carbide method were analysed.
对某乙烯厂乙烯裂解炉炉管断裂进行了现场检测，探讨了断裂原因，提出了维修建议。
Field examination of tube fracture of ethylene cracking furnace for a certain ethylene plant is carried out. The fracture reason is researched. The repair proposal is put forward.
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