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。
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。
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。
This paper study and design its hydraulic power control system and introduces the tool's automatic down hole closed loop of control principle and ways.
对工具内部的液压控制原理及控制回路进行了研究和设计；
This paper study and design its hydraulic power control system and introduces the tool's automatic down hole closed loop of control principle and ways.
对工具内部的液压控制原理及控制回路进行了研究和设计；
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