... 用户拨号 subscriber dialing 用户拨号盘 subscriber dial 用户电报 telex ...
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电话拨号盘直到1919年才出现，那时西方电气公司(Western Electric)首批自命的“用户界面科学家”认真研究什么才是最直觉的形态。
The telephone dial didn't appear until 1919, when the first group of self-designated "user interface scientists" at Western Electric considered what the most intuitive form should be.
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