特点：搅拌、分散时空气吸留少，混合与调匀效果俱佳，用中或高速搅拌、分散可使物料迅速溶解，颗粒变小。
Characteristic:very little air absorbed and remained, and good results of mixing evently. Middle or high speed stirring and disperding makes the material dissolved guickly and grains into small.
与传统提升管相比，环形截面提升管中颗粒速度分布的均匀性有所改善，其最高速度与最低速度之差变小。
The radial distribution of particle velocity is more uniform and the difference between the maximum velocity and the minimum velocity decreases in comparison with the conventional riser.
麦鼓的颗粒细度适当变小，有利于幼虫的个体发育、平均蛹重的提高。
The fit declining would help the development of the individual larva and improve the weight of average papue.
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