2009年11月，法航荷航集团的一架波音747客机曾在一个发动机中混入50%的生物燃料，并在荷兰成功完成了示范飞行。
An Air France-KLM Boeing 747 using a 50 per cent biofuel mix in one engine successfully completed a demonstration flight in the Netherlands in November 2009.
他最近在美国国家航空NASA的主要科学机构之一，Goddard太空飞行中心(GoddardSpace Flight Centre)用电脑模拟向研究人员示范了设计的可行性。
He recently demonstrated a computer simulation of the idea to researchers at the Goddard space Flight Centre, one of the main scientific establishments of NASA, America's space agency.
该公司已经建造了一艘名为Betty、可以遥控的测试飞行器，以示范如何完成基本工作任务。
The firm has already built a remote-controlled test version, called Betty, to demonstrate how the basic arrangement would work.
一周以后，弗莱契对一班新学员讲授高速飞行的原理时在作示范动作。
It happened just a week later. Fletcher was demonstrating the elements of high-speed flying to a class of new students.
许多航空公司的空姐在飞行前安全示范期间，还增加了一条对三星手机的警告。
Flight attendants on many airlines have also added a warning about the Samsung devices during pre-flight safety demonstrations.
使用设计原型和模拟技术，转变计划被有效，而且资讯科技是飞行员版本被设计而且示范。
Using prototyping and simulation techniques, the transition plan is validated and it's pilot versions are designed and demonstrated.
使用设计原型和模拟技术，转变计划被有效，而且资讯科技是飞行员版本被设计而且示范。
Using prototyping and simulation techniques, the transition plan is validated and it's pilot versions are designed and demonstrated.
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