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基于操作员安全性的等级,由高至低依次为:();();()、OPER、LVL2(观看和确认报警)、LVL1(只能观看)。...
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FTE节点间有几条路径?()A、1条B、2条C、3条D、4条...
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串级均匀控制系统结构形式与串级控制系统相同,它与串级控制系统有区...
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DCS现场控制站的机柜具有();();();();()功能。...
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PKSC200硬件描述不正确的是()A、机架式安装B、机架左边为电源模块C、非冗余的控制器机架内可安装I/O模块D、冗余的控制器机架内可安装I/O模块...
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