PHIL LAPSLEY: And when a long distance line was idle, when there was no call on it, this tone would be being played continuously.
PHIL LAPSLEY:当长途线路空闲时,当没有呼叫时,这种音调会连续播放。
单词 | long distance line |
释义 |
long distance line
原声例句
电台实验室 PHIL LAPSLEY: And when a long distance line was idle, when there was no call on it, this tone would be being played continuously. PHIL LAPSLEY:当长途线路空闲时,当没有呼叫时,这种音调会连续播放。 大商业时代 Professor Pupin's invention has resulted in economies that amount to millions of dollars, and has made possible long distance lines to practically every part of the United States. Pupin 教授的发明带来了数百万美元的经济效益,并使通往美国几乎每个地区的长途线路成为可能。 |
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