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。

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But the principal breakthrough with the solid ink technology stems from the overall simplicity of the machine's innards.

但这项固墨技术的重要突破来自于打印机内部结构的整个简化。

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Flippo Menczar, an associate professor at Indiana University and one of the principal investigators on the project, told Technology Review, "We think this technique must be common."

印第安纳大学助理教授、“揭示真相”项目的主要研究者之一Flippo Menczar在接受《科技评论》杂志采访时称，“我们认为此类伪草根网络技术已经被普遍应用。”

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However, its principal technology analyst, Chris Green, suggested that at 6.3in it would be a "folly" for most users to swap their current handsets for the larger of the two Galaxy Megas.

BBC: Samsung unveils 6.3in Galaxy Mega smartphone

"Many people have recoiled in horror at Windows 8 because it is such a stark change over what they had become used to over the past 15 or so years, " Chris Green, principal technology analyst at consultants Davies Murphy Group Europe, told the BBC.

BBC: Windows 8 update public preview to be released in June

In fact, high technology has been the principal engine of our economic growth over the past four years and the major stimulator of the stock market.

FORBES: Fact and Comment