以下为句子列表：
英文: Subscriber Trunk Dialling (STD) is inaugurated in the UK by Queen Elizabeth II when she speaks to the Lord Provost in a call from Bristol to Edinburgh.
中文: 1958年用户长途直拨（STD）系统由英国由女王伊丽莎白二世举行开机典礼，她在一个从布里斯托尔到爱丁堡的长途拨叫中与对方城市的市长通话。
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英文: The keypad is a vestige of the rotary dial, which itself is an artefact of the switch from human operators to direct-dialling in the 1920s.
中文: 数字键盘演变自转盘拨号器，而转盘拨号器则是1920年代人工接线员向直接拨号转变的产物。
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