Spherical and dendritic Bi nanocrystals were prepared by ultrasonic dispersion method.
用超声分散法制备了球形与树枝状铋纳米晶体；
The oil-based nanometer antiwear agents with well suspension property and well dispersibility were prepared by choosing the proper dispersants and using the ultrasonic dispersion method.
根据正交试验找到了较好的分散悬浮剂，通过添加分散悬浮剂和采用超声波分散的方法制备出悬浮性、分散性良好的油基纳米抗磨剂。
The oil-based nanometer antiwear agents with well suspension property and well dispersibility were prepared by choosing the proper dispersants and using the ultrasonic dispersion method.
根据正交试验找到了较好的分散悬浮剂，通过添加分散悬浮剂和采用超声波分散的方法制备出悬浮性、分散性良好的油基纳米抗磨剂。
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