This is a low energy-density device, which stores electricity directly by charging two conductive plates with static.
（和电池相比，）这是一种“低能量密度”设备，电能被直接存储在两块静止的导电板上。
Enforcement is handled by nearly 700 video cameras within the charging zone, which capture images of number plates.
强制执行依靠的是围绕收费区的700台用于拍摄车牌号的摄像机。
Similarly, in an ultracapacitor, when voltage is applied across the two metal plates (i.e. during charging), a charge still builds on the two electrodes—one positive, one negative.
同样，在超级电容中，当两块金属片被施以电压（即充电）后，电荷建立于两极，一极为正，一极为负。
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。
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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