确定了载体中含水及含醇的较佳范围，并指出二氯化镁醇合过程中加酯进行喷雾成球对载体形态和对催化剂聚合行为均不利。
The optimum values of them in the supports are found. It is suggested that the addition of ester during spraying has detrimental effects on the support particle morphology and olefin polymerization.
确定了载体中含水及含醇的较佳范围，并指出二氯化镁醇合过程中加酯进行喷雾成球对载体形态和对催化剂聚合行为均不利。
The optimum values of them in the supports are found. It is suggested that the addition of ester during spraying has detrimental effects on the support particle morphology and olefin polymerization.
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