Regardless of who and how they paid to access the telephone network, once they are on the line, they can call anyone.
无视他是谁和他们怎样付费接入电话网络的，一旦他们在线，他们就能给任何人打电话。
The telephone interference factor in the overhead line of power network.
交流网络架空线的电话干扰系数；
The telephone interference factor in the overhead line of power network.
交流网络架空线的电话干扰系数；
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