[计]按钮音;

Information is needed as to how the touch-tone phone can be used in medicine.
需要有关怎样在医学上使用按钮电话的资料.
来源:互联网摘选A decision will be taken as to how the touch-tone phone can be used in medicine.
将就怎样在医学上使用按钮电话作出决定.
来源:互联网摘选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.
来源:互联网摘选Your phone settings are currently set to indicate that you do not have touch tone service.
您的电话当前设置表明您不具有双音频电话服务.
来源:互联网摘选
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