selectivity scale

The DM membrane possesses fairly good selectivity, chemical stability and scale stability.

DM阳极隔膜具有好的选择性 、 化学稳定性和尺寸稳定性.

Stock selectivity, stock ownership convergence and the fund type show a greater influence on the yield of funds, whereas the expense ratio, investment type and the fund scale have relatively little effect on the yield.

基金选股能力、持股集中度、基金公司类型对基金收益的影响较为明显，基金费用比率、投资类型、基金规模对基金收益的影响较小。

Based on a detailed mechanistic kinetics model with consideration of olefin readsorption effect, the behavior of olefin readsorption in a laboratory-scale reactor is numerically investigated Modeling results indicate that, olefin secondary reaction is responsible for enhancing the selectivity of heavy hydrocarbons;

基于考虑烯烃再吸附的详细机理动力学模型，从数值上分析了烯烃再吸附效应在实验室积分反应器中的作用行为。结果表明，烯烃再吸附二次反应对提高重质烃类的选择性是有利的；

Due to strong bonding to the matrix, the compact structure and lack of ionic selectivity permeation passage, the thickness of scale stops increasing and is kept stable since it forms at 48 hours.

该腐蚀-沉积膜与基体结合力强、组织致密、无离子选择性渗透通道，厚度在48h后的腐蚀过程中变化很小。