The results showed that the emulsifier possessed good surface activity, and it had good emulsifying properties for rosin.
结果表明该表面活性剂有良好的表面活性，并对松香有很好的乳化性能。
The experiment results show that all the HDP-HPCHS products can easily dissolve in water and all possess good surface activity.
实验结果表明，不同分子量的HDP-HPCHS产物均具有良好的水溶性和表面活性，且其表面活性随分子量的改变而呈规律性变化。
Objective: to find good activity surface activity dose which eliminating chromium ion in the waste water by using foam flotation method to determine the kinds of the surface activity.
前言：目的：为找到泡沫浮选法去除废水中铬离子活性较好的表面活性剂，对表面活性剂种类进行探索。
The backwashof low frequency, high compressive strength, no powder, no hardening, high activity and large specific surface area, good regeneration effect.
反洗频率低，抗压强度高，不粉化、不板结，比表面积大，活性高，再生效果好。
The backwashof low frequency, high compressive strength, no powder, no hardening, high activity and large specific surface area, good regeneration effect.
反洗频率低，抗压强度高，不粉化、不板结，比表面积大，活性高，再生效果好。
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