Yesterday's 8.9-magnitude earthquake set off the automatic shut-down systems in ten of Japan's 55 nuclear power plants, from which the country gets a third of its electricity.

昨天的8.9级地震使到日本55座核电站中的10座自动关闭，而这些核电站占了日本全国发电量的三分之一。

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Power supply comes with 4 built - in ac outlets, surge protected and breaker, automatic " turn - on " and " shut - down " function.

智能型电源供应器有4个内建的电源插座， 防雷击保护及过载保护。

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Thus a constant electric charger of the step-down condenser type is constructed, resulting in a fully automatic continuous power. supply.

构成了电容降压式恒流充电器，达到了完全自动不间断供电。

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