wireless telegraphy

常見例句

A message transmitted by wireless telegraphy.
電報(bào)信息（通常使用莫爾斯電碼）。
He experimented for years in his own laboratory, and while he was still a young man, he invented wireless telegraphy.
他在他自己的實(shí)驗(yàn)室里成年累月的作實(shí)驗(yàn)，之后，當(dāng)他還是個(gè)年輕人的時(shí)候，他發(fā)明了無線電報(bào)。
Voice radio, as opposed to wireless telegraphy, was first successfully tried in 1906, but the first broadcasting stations were opened in 1920, after the war.
與無線電報(bào)相對(duì)的無線電廣播在一九○六年就成功地進(jìn)行了最初的試驗(yàn)，但第一批廣播電臺(tái)是在戰(zhàn)后的一九二○年開辦的。