The shortcomings existing in electrical control system in preliminary mine hoist are analyzed, and the application and effectiveness of PC in hoisting shaft are summarized.
分析了原矿井提升机电控系统存在的缺陷并阐述可编程序控制器（PC）在矿用提升机中的应用及效果。
The shortcomings existing in electrical control system in preliminary mine hoist are analyzed, and the application and effectiveness of PC in hoisting shaft are summarized.
分析了原矿井提升机电控系统存在的缺陷并阐述可编程序控制器（PC）在矿用提升机中的应用及效果。
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