Following the fuel testing the aircraft is undergoing structural coupling and ground vibration testing, as well as completing hydraulic testing of the doors and landing gear.

此次燃料测试后，飞机将进行结构耦合和地面振动测试，并将完成门和起落架的水压测试。

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Tires blew, steel snapped, and the landing gear folded. The burning aircraft teetered to port, then the belly hit the concrete and skidded along, trailing a torrent of hot white sparks.

轮胎爆炸，钢架折断，起落架扭曲成废铁，还在燃烧的飞机摇摇晃晃地倒向左边，机腹落在水泥铺就的地面上开始滑行，擦出一串灼热的白色火花。

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A high-pitched whine, then a thump, signaled the deployment of the landing gear. The flaps dropped and the aircraft slowed drastically.

一个尖锐的声音伴随着沉闷的砰砰声，这是驾驶员在放下起落架，襟翼放下之后，飞机的速度慢了许多。

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Similarly, the origins of the microwave oven (an offshoot of radar), the folding baby buggy (the brainchild of a test-pilot inspired by aircraft landing gear) and traffic lights (one of the first of which exploded outside the Houses of Parliament) are not widely known.

ECONOMIST: Encapsulating a century in gadgets

The Park Place search begins a day after the NYPD announced that Boeing officials had determined that the 5-foot-tall, 3-foot-wide wreckage is a support piece attached to the wing of an aircraft, and not a piece of landing gear as originally believed.

WSJ: 9/11 Remains Sought in Debris Behind New York City Building

The British-based Messier-Dowty unit of French state-owned firm Snecma, would build the Boeing jet's landing gear, a substantial and expensive part of any aircraft.

BBC: Dogfight over $200bn air contract