Some problems in the design of heating mixer and cooling mixer are discussed, the design principle for the angle of the heating mixer blades analyzed, and a new type of structure for the cooling mixer provided.%讨论了热混机、冷混机设计应注意的几个问题,分析了热混机桨叶倾角的设计原则,提出了一种新型冷混机结构。
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