Over the last five years, Boeing, the U. S. Air Force and Navy, Honeywell UOP and others have systematically tested and advanced the alternative fuel.

在过去的五年里，波音公司，美空军、海军，霍尼韦尔环球石油公司等都已经系统性的测试并完善了这些新能源。

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Before specific solutions can be tested, NASA must first collect data on how the rotor blades interact with air under a variety of operating conditions.

在测试特定的方案以前，NASA必须首先搜集在不同的运行条件下桨叶与空气如何相互作用的数据。

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Researchers at the University of Colorado tested 45 showers in five states as part of a larger study of the microbiology of air and water in homes, schools and public buildings.

科罗拉多大学研究人员测试了5个州的45个浴室，这是在居室、学校和公共建筑中空气和水的微生物学更大研究的一部分。

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The company has shipped its jet fuel to the Air Force, which has tested it in A-10 aircraft.

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The main contribution of this study is to substantiate that claim with a combination of well-tested economic and neuroscientific approaches, rather than air-filled conjecture.

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Fischer-Tropsch derived fuels for aviation have been produced recently for the Department of Defense by U.S. based Syntroleum, and have been successfully tested by the US Air Force in a B-52 jet with all eight of its engines fueled by the mixture.

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