对聚氯乙烯生产中聚合后期提高聚合温度和单体转化率的方法进行了探索。
The process of polymerization temperature and monomer conversion in later period of polymerization in PVC production was discovered.
重点阐述目前世界上聚氯乙烯生产的几种典型聚合工艺，并对其进行技术比较。
In this papers, several kinds of typical polymerization processes of PVC production applied in the world contemporally are illustrated and the technological comparison are also discussed.
内热式沸腾干燥器是聚氯乙烯生产中关键核心设备，换热管组是该设备上主要部件。
Internal heated boiling dryer is the key equipment in the production of the polyvinyl chloride, and the heat transfer tubes are the key part in this equipment.
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