一次绕组采用油纸电容型绝缘结构。

The primary winding is with oil-paper capacity insulation structure.

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绝缘设备的灵敏度每年至少检查一次。

The sensitivity of the dielectric equipment is to be checked at least once each year.

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绝缘设备的灵敏度每年至少检查一次。

The sensitivity of the dielectric equipment is to be checked at least once each year.

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