And a New Zealand inventor recently invented a jet pack, which weighs about 250 pounds, that reportedly can run for 30 minutes.

最近，又有一位新西兰发明家发明了一种重约250磅的喷气式飞行背包，据称它可以飞30分钟。

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The Martin jet pack is designed to conform to the Federal Aviation Administration's definition of an ultralight vehicle, which weighs less than 254 pounds and carries only one passenger.

马丁“喷气飞行器的设计符合了美国联邦航空管理局对超轻交通工具的定义。”超轻交通工具是指重量不到254磅，仅载一名乘客的交通工具。

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An American company says it has developed the world's first true jet pack for personal flight.

一家美国公司声称开发出了全球第一个用于个人飞行的喷气背包。

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The apparatus he used, known as the Jetlev R200, is a water-propelled jet pack that can shoot a person 30 feet into the air and run for some 4 hours.

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Bill Gates in his private jet flies with more personal space than does Joe Six-Pack when making a similar trip on a commercial jetliner.

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"It's a bonding experience, one that very few people in the world have ever had, " said trainer Dean O'Malley, adding that first-time users typically managed to reach heights of 10 to 15 feet with the jet pack.

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