Clause 6 introduces the possibility of electrical coupling of a telephone set to a hearing aid.
第6节介绍了电话机电耦合到助听器的可能性.
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You need add a called line indicator or buy a display telephone set after your application.
申请后需要加装来电显示器或购一部来电显示话机.
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The old rotary dial telephone desk set. The touch tone version was called a 2500 set.
老式旋转式台式拨号电话. 而按键式电话称为2500.
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Qingyuan in Guangdong by telephone Canton set a train ticket, playing what number?
在广东清远用电话订广州的火车票, 打什么号码?
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发射机的插头插入了电灯线插口,它的另一头和我们卧室里的电话线相连。
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电话机双音频拨号集成电路原理及故障判断方法
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