高度不匹配之电源与负载抗，传输线上多重反射之衰减时间很长。
High source and load reflections require a long time for multiple reflections to decay.
若各频率成份之电源为定电压，则所得时域脉波即脉冲电压源在传输线上之脉冲响应。
If the time harmonic source is assumed to be constant voltage, the summed pulse propagation is the impulse response along the line.
他们可能会有一个栖身之所，但里面没有电源供给、电话或管道设施。
They may have a home to shelter themselves but it does not have power supplies, a telephone or plumbing.
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