不过蝙蝠侠确实配备了蝙蝠钩：带有特殊器件的挂钩可以扔到电力线路上，这样就可以给他们通信设备的电池充电。
But BATMAN does come equipped with a bat hook: a grappling hook that special operators can throw onto power lines in order to charge up their battery-powered communications equipment.
由于电网中非线性设备的使用日益增多，所产生的高次谐波电流大量注入电力线路中，使得电网电压、电流波形发生畸变。
Since more and more nonlinear equipments have been used in the power supply network, the generated high harmonics current leads to waveform distortion of voltage and current in the supply network.
利用原有电力线路传送数据，以达到对用电设备进行监测、控制的目的，是一件非常有意义的事情。
It's significative to communicate over existing AC main wiring in order to control and monitor electric appliance.
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