Flying cars is swooping to the rescue_资讯
as motorways become more and more clogged up with traffic, a new generation of flying cars will be needed to ferry people along skyways.
that is the verdict of engineers from the us space agency and aeronautical firms, who envision future commuters travelling by "skycar".
these could look much like the concept skycar shown in the picture, designed by boeing research and development.
however, such vehicles could be some 25 years from appearing on the market.
efforts to build flying vehicles in the past have not been very successful.
such vehicles would not only be expensive and require the skills of a trained pilot to fly, but there are significant engineering challenges involved in developing them.
"when you try to combine them you get the worst of both worlds: a very heavy, slow, expensive vehicle that’s hard to use," said mark moore, head of the personal air vehicle (pav) division of the vehicle systems program at nasa’s langley research center in hampton, us.
参考译文：
由于高速公路上的交通堵塞情况越来越严重，一种能够载人穿梭在“空中高速路”上的新一代“飞车”将成为需要。
这就是美国国家航空航天局和一些航空公司的工程师们的意见，他们预测未来人类将会乘坐“飞车”旅行。
这些车可能会和图片中见到的波音公司研发中心设计的概念飞车很相像。然而，这样的交通工具可能需要25年左右的时间才能投放市场。
人类在过去制造飞车的努力一直都不是很成功。这样的交通工具汽车耗资不菲，而且要求驾驶者具备像训练有素的飞行员一样的驾驶技巧；不仅如此，在研制过程中还面临工程学方面的严峻挑战。
马克·摩尔是美国国家航空航天局兰利研究中心（位于汉普顿）汽车系统项目组“个人空中交通工具（pav）”小组的负责人，他说：“当你试图将各个方面组合起来时，得到的是一辆最糟糕的车：非常笨重，速度又慢，价格还高，总之驾驶起来很不方便。”
that is the verdict of engineers from the us space agency and aeronautical firms, who envision future commuters travelling by "skycar".
these could look much like the concept skycar shown in the picture, designed by boeing research and development.
however, such vehicles could be some 25 years from appearing on the market.
efforts to build flying vehicles in the past have not been very successful.
such vehicles would not only be expensive and require the skills of a trained pilot to fly, but there are significant engineering challenges involved in developing them.
"when you try to combine them you get the worst of both worlds: a very heavy, slow, expensive vehicle that’s hard to use," said mark moore, head of the personal air vehicle (pav) division of the vehicle systems program at nasa’s langley research center in hampton, us.
参考译文：
由于高速公路上的交通堵塞情况越来越严重，一种能够载人穿梭在“空中高速路”上的新一代“飞车”将成为需要。
这就是美国国家航空航天局和一些航空公司的工程师们的意见，他们预测未来人类将会乘坐“飞车”旅行。
这些车可能会和图片中见到的波音公司研发中心设计的概念飞车很相像。然而，这样的交通工具可能需要25年左右的时间才能投放市场。
人类在过去制造飞车的努力一直都不是很成功。这样的交通工具汽车耗资不菲，而且要求驾驶者具备像训练有素的飞行员一样的驾驶技巧；不仅如此，在研制过程中还面临工程学方面的严峻挑战。
马克·摩尔是美国国家航空航天局兰利研究中心（位于汉普顿）汽车系统项目组“个人空中交通工具（pav）”小组的负责人，他说：“当你试图将各个方面组合起来时，得到的是一辆最糟糕的车：非常笨重，速度又慢，价格还高，总之驾驶起来很不方便。”