The first aspect expresses the relationship between the structure pattern and grade variationof an indication which is called relative difference of weight values of the indication.
第一方面表征一个标志的构形与等级变化之间的关系，称为标志权相对差。
2
It has two functions of manual operation and automatic operation, The blender is speed variation. It is equipped with end-point indication light buzzer and automatic lock equipment.