备用开关图像和封面行简单而优雅。
The image of the standby switch and the cover line are simple yet clever.
本文介绍了大型铁合金密封式矿热炉安装备用开关的工作原理及使用效果。
This paper presents installation of spare switches in a large iron alloy seal type electric heat furnace. It also describes working principles and utilization efficiency of the spare switches.
因此开关柜在备用和运行状态下，用户应保证加热器全天候投入！
Therefore, when switchgear is running or in standby mode, the user should ensure that the heater is always on!
转换开关转换开关是能够把负载在备用电源和常规电源之间进行转换的电气设施。
Transfer switch a transfer switch is an electrical device for switching loads between alternate power sources.
设有备用电源输入接口和切换开关。
设有备用电源输入接口和切换开关。
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