英语语法分析

Marconi was the first to develop a practical method for wireless telegraphy using radio waves.

马可尼是第一个开发出利用无线电波进行无线电报传输的有效方法的人。

Initially, this was wireless morse code telegraphy, the principal communication technology of his day.

最初，这是电报通讯，他那个时候的主要通信技术。

He experimented for years in his own laboratory, and while he was still a young man, he invented wireless telegraphy.

他在他自己的实验室里成年累月的作实验，之后，当他还是个年轻人的时候，他发明了无线电报。