波音公司试飞了一架利用燃料电池做动力来驱动电动机的迪莫诺动力滑翔机。
Boeing has flown a Dimona motor glider with an electric motor powered by a fuel cell.
在瑞士一个机场的飞机库里面有一架完全不用燃料的飞机原型（如上图所示）。
Inside a hanger at a Swiss airfield is the prototype of an aircraft (illustrated above) that does not use any fuel at all.
猜想至少是一架民兵军用飞机和燃料泵着了火并释放大量的烟雾导致的。
He said that several of the explosions — thought to be the result of at least one military aircraft and a fuel tank catching fire and releasing plumes of smoke — were particularly large.
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