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| navigate by keyword : automatic automatics automation board breaker circuit control device dial diode electric electrical electricity electro governing heavy industry instrument instrumentware management managerial power relay scale scheme semiconductor structure subcontrol switch switchable system transistor tumbler type |
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| Inscription on tablet: Three step-like current directed protection zero sequence. Heat power station |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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