By the start of the 20th century, new advancements in radio technology revolutionized the way that Americans received news.

到了20世纪初，电技术的新进步彻底改变了美国人接收新闻的方式。

Before long, Tesla was also sketching out the fundamentals of radio technology.

不久之后，特斯拉还勾画出了电技术的基础。

It was an invention which laid the foundations of modern radio technology.

【lay】这一电技术奠定了基础。

It was Tesla who first pioneered alternating current, who made major advances in radio technology and who first devised many of the systems which are used today in renewable energy systems.

特斯拉首先开创了交流电，在电技术方面取得了重大进步， 并且首先设计了当今可再生能源系统中使用的许多系统。

An explosion of new technology in the past ten years from motion-activated camera traps to microphone monitors and radio tags, which is helping ecologists to track, measure and protect life on Earth.

在过去十年里，新技术突飞猛进，从动作感应摄像机陷阱到麦克风监视器和电标签，这些技术帮助生态学家追踪、测量和保护了地球上的生物。