61347爬电测量
minimum distances betweenlive parts and a flat sup-porting sur-face or a loose metal cover, if any, ifthe con-struction does not ensure that the values under 2 above are maintained under the most unfavourablecircumstances:
这一句要怎么翻译啊, 这里2是代表什么。
为什么都没人回 爬电距离开槽大于1mm要怎么算
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