It was not until 1920 that regular radio broadcast began.

直到1920年才开始有定期的无线电广播。

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A spokesman said the search and rescue mission was mounted after the jet failed to make regular radio contact.

一名新闻发言人透露，搜救任务在飞机不能进行正常的无线电联络之后就已经开始了。

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Since the pulsar's regular radio and X-ray pulses have not altered, researchers suspect that the fluctuations originate in the inner portion of the nebula.

鉴于脉冲星规律的射电及X射线脉冲并未发生改变，因此学者们怀疑波动源自于星云的内层。

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But it would be many years before there were musical recordings or regular radio broadcasts.

VOA: special.2009.02.08

Poland's speaker of parliament, Bronislaw Komorowski, became the country's interim head of state Saturday after Polish radio adjusted its regular programming to announce that President Lech Kaczynski and his wife Maria were among those killed in a plane crash in Western Russia.

VOA: standard.2010.04.10

U.S., European and Pacific controllers do text message with pilots out over oceans beyond regular radio range.

WSJ: Texting While Flying: Help for Pilots

It went on to enjoy enormous success, with triumphs at the National Eisteddfod and regular radio and television appearances.

BBC: Famous choir's blue plaque honour

Though her daily talk show still accounts for the bulk of her income, the Queen of All Media has cashed in with a diverse range of other projects, including a magazine, website and radio channel, regular TV specials and films.

FORBES: Magazine Article