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为四川某矿业集团选矿厂设计了球磨分级自动控制系统。
An automatic control system of grinding and classification is designed for a concentrator of a Sichuan mining group.
youdao
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为四川某矿业集团选矿厂设计了球磨分级自动控制系统。
An automatic control system of grinding and classification is designed for a concentrator of a Sichuan mining group.
youdao