He also invented the Skyhook, an air rescue system that involved an airplane and a large helium balloon.
他还发明了高空吊运车,这是一种为飞机和大型的氦气球的空中救援系统。
The airbags will inflate with helium as soon as a specially engineered valve blows open.This valve can be triggered manually or automatically, he said, depending on the customer's requirements.
当一个特殊的启动阀门被打开以后气囊会迅速的充满氦气,阀门的启动可以采用人工或自动的方式打开,他说这可以根据用户需求来设计。
The airbags will inflate with helium as soon as a specially engineered valve blows open. This valve can be triggered manually or automatically, he said, depending on the customer's requirements.
当一个特殊的启动阀门被打开以后气囊会迅速的充满氦气,阀门的启动可以采用人工或自动的方式打开,他说这可以根据用户需求来设计。
He also invented the Skyhook, an air rescue system that involved an airplane and a large helium balloon.
VOA: special.2009.01.14
He's trying to put eight electrons around helium, and it isn't working. But look down here.
他尝试把8个电子放在氦的周围,但那不行,但注意到这里。
And there he was able to identify the alpha particle as the helium nucleus.
他证实了,阿尔法粒子就是氦核。
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