除湿机 ... 环境风/循环风转换阀environment/regeneration air converse valve 干燥风机process blower 换向阀（回转阀）change valve ...
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The process flow, selection of the blower and dust collector and the application effect of the dust cleaning equipment was described.
对此法的工艺流程，风机和除尘器的选型，以及设备的使用效果作了叙述。
The work process accurate dividing of three blade impeller realized by the use of positioning in the processing of three blade impeller for Roots blower are described.
叙述了罗茨鼓风机三叶叶轮加工中用定位方法来实现三叶叶轮准确分度的工艺方式。
The conventional activated sludge process can be transformed into advanced treatment in removing N and P by a slight change like adding agitator and blower.
经过对普通活性污泥工艺添加搅拌装置和改进曝气装置，即可达到去除氮磷的深度处理的要求。
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