The Pre的电池是容量是1150毫安，跟iPhone 3g一模一样，尽管有报道称Pre的电池寿命因其后台处理能力而略短。

The Pre's battery capacity is 1150 mAh, exactly the same as the iPhone 3g, though the Pre is reported to have slightly worse battery life due to its background process capability.

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在高功率微波产生器中，为了提高功率容量和效率，微波管常采用过模波导。

In high power microwave producer, the microwave tube often has used the over-mode waveguide in order to enhance the power capacity and the efficiency.

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由于逆变器电源对输出接地电容的限制，对严重的共模电磁干扰难以用大容量的共模滤波器抑制共模噪声。

With the limitation to the ground capacitance by inverter, it is difficult to suppress the severe common-mode noise by large CM filter.

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