Characteristics: it's strong in mixing capacity, with a high speed, a high mixing precision, a small residual amount, a low energy consumption and an extensive scope.
特点：混合能力强，速度快，混合精度高，残留量小，能耗低，适用范围广。
Principle of getting high control precision with normal processing devices and advanced measuring devices in mixing different matter is introduced; the methods of reducing control error are analyzed.
介绍了利用常规执行机构和先进检测设备，在控制不同物质进行动态混合时获得较高控制精度的原理；分析了消除累计量（物料投放量）控制误差的技术和方法。
This paper focuses on mixing cement concrete batching at how to improve the preparation of precision pneumatic valves, and how to accurately control the concrete slump constant.
主要论述拌和水泥混凝土配料时如何提高气动闸门的配料精度，如何比较准确地控制混凝土的坍落度。
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