Contacts on the filter unit and the field charging unit engage cooperating contacts on an enclosure mounted on the frame when the door is closed to supply electrical power.

当门关闭以供电时，过滤器单元和电场充电单元上的接触件配合安装在框架上的箱上的协配接触件。

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Magnetic resonance coupling is thought to be safer than other methods of wireless charging because the intensity of the field can be increased without affecting other, non-resonant objects nearby.

研究者认为磁共振耦合技术比其它无线充电方法更加安全，因为在增大磁场强度的同时，周围的其它非共振物体不会受到影响。

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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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Yvonne Fovargue said she wanted to "level the playing field between the fee-charging debt management companies who can spend a considerable amount of money on advertising and the free agencies who put all of their money into providing a service and consequently may not be as well known".

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The Togo star later apologized for charging the full length of the field to celebrate in front of the Arsenal supporters, who had spent the afternoon taunting him.

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Whether you are looking at London leading on congestion charging, or San Francisco leading on solar power (with a system the size of a football field on top of its convention centre), it is clear that strong civic leadership matters most of all.

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