棒板电极气隙间距为d,有屏障气隙的击穿电压与该屏障的安装位置有很大的关系,通常最有利的屏障位置在距离棒极的()d处。
发布时间:2026-01-24
A.1/4〜1/3
B.1/5〜1/4
C.1/6〜1/5
D.1/7〜1/6
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