某固体电介质在冲击电压作用下发生击穿,无明显温升,其击穿原因是( )。(0.5)
发布时间:2025-11-26
A.电子碰撞电离引发电击穿
B.介质损耗导致热击穿
C.长期老化引发电化学击穿
D.内部气泡受热膨胀击穿
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