The same time capacitor C3 is disconnected from the ground so that the load voltage ripple on capacitor C4 does not influence the gate voltage of IGBT Q2.

同时断开电容器C3与地的连接，由此电容器C4上的负载电压波动不会影响IGBTQ2的栅极电压。

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You may want to put plans for building that flux capacitor on hold: a "toy" big bang created in the lab suggests time travel may not be possible after all.

也许你要把建造通量电容器的计划搁置下来：实验室下的大爆炸理论模型表明时间旅行也许根本不可能。

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This percentage is determined by first charging the capacitor to the rated voltage for a specified time interval, then discharging it for a second time interval.

确定这个百分比的方法是：在一个规定的时间间隔内将电容器充电至某一额定电压，然后在第二个时间间隔内使电容器放电。

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By storing excess electrical energy that is generated by the dynamo in a capacitor, and getting the spring to unwind only when the capacitor charge falls below a certain threshold, it has proved possible to extend the playing time of the second-generation radio to about an hour.

ECONOMIST: Clockwork technology