In this paper, the general drying process and the working principles of heat pump dryer are discussed, and the design of a set of heat pump drying equipment is described.
本课题根据热泵干燥机的工作原理以及对干燥过程的研究，自行设计并组装了一套热泵干燥装置。
The principles and advantages of the membrane separation, vacuum freeze drying in instant tea processing, the bright future of the instant tea were outlined.
膜分离技术与真空冷冻干燥技术在速溶茶加工上应用的原理及优越性，以及速溶茶的广阔前景。
The application of time sequence control unit in dairy drying equipment is introduced. Its composition and working principles are recommended as well.
介绍了时间顺序控制器在乳品干燥设备中的应用及其组成和工作原理。
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