To avoid the malpractice of old type electromagnetic lock, a new type anti misoperation device for grounding switch has been developed.
针对老式电磁锁在结构上存在的弊端，研制了一种接地刀闸的新型防误装置。
To avoid the malpractice of old type electromagnetic lock, a new type anti misoperation device for grounding switch has been developed.
针对老式电磁锁在结构上存在的弊端，研制了一种接地刀闸的新型防误装置。
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