NASA揭开未来飞机设计的神秘面纱

　　NASA has revealed three concept designs for quiet, energy efficient aircraft that potentially could be ready for flight as soon as 2025.

　　美国国家航空航天局最近公布了三款在未来2025年人们乘坐的飞机设计图，这三款飞机比现在的客机更安静、而且更加节能高效。

　　Three companies - Lockheed Martin, Northrop Grumman and The Boeing Company - came up with the designs and, at the end of last year, all three won a contract from NASA to research, develop and test their concepts in 2011.

　　美国国家航空航天局去年年底分别与洛克希德 马丁、诺斯罗普格 鲁曼以及波音公司这三家航空巨头签订了飞机设计合同。这三家航空巨头在接下的2011年，将继续进行研究、开发测设它们的设计方案。

　　The designs came about after NASA revealed it was aiming to develop a line of "super planes" that are faster, larger, quieter - and burn fuel more efficiently and cleanly than their present counterparts。

　　美国国家航天航空局在合同中要求开发的新飞机不仅是更大、更快、更安静的“超级飞机”，而且还要比目前现有的客机更加省油、绿色节能。

　　Now, each of the three companies will spend the rest of this year exploring, testing and simulating their designs in the hope that NASA will choose it for development。

　　在接下来的一年时间里，这三家公司还将多次开发、论证和测试完善自己所提交的飞机设计方案，以争取让美国国家航天航空局最终选中自家的设计。