On December 12th, 1901 Italian engineer Marconi first realized the humanity surmounts Western the radio correspondence, at that time each second transmission capacity only was several bits.是什么意思_On December 12th, 1901 Italian engineer Marconi first realized the humanity surmounts Western the radio correspondence, at that time each second transmission capacity only was several bits.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句