以不活泼的氮气充入绝缘介质层构成细密均匀的微孔结构，各微孔间互不连通，类似一个个密封仓。
As the inactive nitrogen in insulated dielectric layer, it will form an even and compact micro-hole structure with no linkage between each micro-hole which like the sealed room.
以不活泼的氮气充入绝缘介质层构成细密均匀的微孔结构，各微孔间互不连通，类似一个个密封仓。
As the inactive nitrogen in insulated dielectric layer, it will form an even and compact micro-hole structure with no linkage between each micro-hole which like the sealed room.
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