• 2022-10-25
    某三相电源的电动势分别为[img=176x27]18033feab9be65a.png[/img]V, [img=176x27]18033feac374b2a.png[/img]V, [img=174x27]18033feacd45f08.png[/img]V,当t=13s时,该三相电动势的和为
    未知类型:{'options': ['20V', '18033fead66ab58.png V', '0 V', '18033feadebfb40.png V'], 'type': 102}