Fractionation

Design and operation of primary fractionation system in ethylene unit;

乙烯装置初分馏系统的设计和操作要点

Then the fuzzy primary classification method based on structural characters along with the consistent relaxation matching method is adopted.

采用基于结构特征的模糊初分法和相容松弛匹配法由计算机对专用报表上填写的各种数据与特殊符号进行自动识别。