The tabs are at ground potential and need no insulation.
标签是在地面的潜力和需要，没有隔热效果。
The insulation resistance of No. 3 generator is too low. Please rectify it.
三号发电机的绝缘电阻太低，请校正。
No conductive dust and corrosive gas which may destroy metal and insulation;
没有导电尘埃与能破坏金属及绝缘的腐蚀性气体的场所；
No conductive dust and corrosive gas which may destroy metal and insulation;
没有导电尘埃与能破坏金属及绝缘的腐蚀性气体的场所；
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