The charging device, made of a coiled wire with capacitance plates on either end, uses electricity to create a magnetic field that resonates at a specific frequency.

充电装置由线圈和电容板组合而成，通电后会产生一个特定频率的共振磁场。

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The charging device is equipped with a cooling system.

本加料装置装配有冷却系统。

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Voltage control method, charging device, image forming device and processing cartridge.

电压控制方法，充电装置，图像形成装置以及处理卡盒。

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The Nexus 4 has the circuitry to be charged by any Qi charging device.

FORBES: Qi Wins Wireless Charging Battle With Nexus 4 and Windows Phone 8 Support

What's more, Energizer says that the zinc air batteries offer a "much lower cost" for OEMs compared to lithium ion batteries, which comes at least in part from the elimination of the need for charge circuitry and a charging device.

ENGADGET: Energizer introduces thin, powerful Zinc Air Prismatic battery

Also equipped with an iPhone and iPod dock, Parrot Zikmu Solo enables listening to music while charging the device.

ENGADGET: Parrot Zikmu Solo reaches US in November, makes a tower of wireless sound yours for $999