The surface tension of the product was determined, and the influences of temperature and sodium chloride on the surface activties was studied.
测定了该产品的表面张力，研究了温度、 氯化钠对其表面性能的影响。
The die surface is represented by the Ferguson surface with tension parameter through transverse sections of product and billet, so it is universal and flexible.
模具曲面用通过毛坯和型材截面的带张力参数的弗格森曲面表示，具有通用和曲面形状变化丰富的特点。
The results indicated that the product could decrease the surface tension of water, and had lower critical micelle concentration, better surface activity.
该种阳离子表面活性剂具有较好的表面活性。
应用推荐