The paper introduces the component, working principle, automatic calibration and it's application in the aluminium smelter of proportioning belt scale controlled by PLC.
介绍了PLC控制的配料皮带秤的组成、工作原理、自校验功能及其在铝厂碳素系统配料中的应用情况。
The buildup and principle of proportioning system in rolling reconstituted tobacco processing line were (introduced.)
简要介绍了辊压法再造烟叶生产线上配比系统的组成和配比原理。
By an practical project of cold recycling of asphalt mixture as flexible base, the principle and approach of proportioning design of recycling material are introduced.
通过再生旧沥青混合料用做柔性基层的工程实例，介绍了冷拌再生沥青混合料配合比设计的原则、方法、步骤及最佳配合比的验证。
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