I'm sure that the replacement element has the correct voltage and wattage rating.

我保证确保替换的元件具有正确的额定电压和功率。

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This power is transformed through a transformer to enter the national grid at the correct voltage.

这项权力是通过转化变压器进入国家电网在正确的电压。

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If your laptop does not use a programmable voltage regulator, it should come with jumpers or switches to set the correct voltage.

如果便携式电脑没有使用可编程电压调节器，则应随附跳线或开关以设置正确的电压。

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