这也解释了为什么在今年的展会上华盛顿有很多人参加，因为这些新技术侵入了受到严格监管的领域。
That, too, explains the heavy Washington presence at this year's show, as these new technologies intrude upon heavily regulated areas.
关于人们何时首次进入美洲这一问题的最新工作就是这些新技术的价值的一个例子。
Recent work on the problem of when people first entered the Americas is an example of the value of these new techniques.
量化这些新技术对就业的影响是很困难的。
Quantifying the employment impact of these new technologies is difficult.
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