Voltage and current are two most direct parameters.
电流和电压是最直观的两个电参量。
The voltage in the signal varies in direct proportion to the sound wave.
信号中的电压按声波比例变化。
Air conditioning, television, Satellite television, Direct dial phone, Mini bar, Trouser press, Voltage 220v.
空调,电视机,卫星电视,直拨电话,迷你酒吧,裤子烫板,电压220伏。
Air conditioning, television, Satellite television, Direct dial phone, Mini bar, Trouser press, Voltage 220v.
空调,电视机,卫星电视,直拨电话,迷你酒吧,裤子烫板,电压220伏。
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