Boeing has taken the lead in developing new technology to make big aircraft more efficient, more economical and more eco-friendly.

波音公司在研制新技术上处于领先地位，这些新技术使大型飞机更加的高效、经济和环保。

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Sometimes these assignments require the use of mounts on the outside of aircraft, which has lead to a few interesting situations.

有时，这些作业需要用到飞机外面的托板，结果出现了一些有趣的情况。

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It will be the lead ship of a new class of aircraft carriers, the first designed by the U.S. Navy since the Nimitz-class design in the 1960s.

它将是新一代航空母舰的主导舰船，自从1960年代的尼米兹设计以来第一次由美国海军设计。

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As Mr Streiff pointed out this week, Airbus must also catch up with Boeing in product development, cutting its lead-time for new aircraft from seven to five years.

ECONOMIST: Airbus and EADS

With the ability to offer lowest-price guarantees and exclusive online services, such as picking your own seat in an aircraft, the travel providers may well move into the lead.

ECONOMIST: The travel industry

They are competitive, and the quest for economic achievement just might lead to the Chinese government giving their entrepreneurs the freedom to maximize the use of business aircraft as these instruments are intended.

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