The insulating foam prevents ice from forming on the tank when it is filled with 500,000 gallons of supercold liquid hydrogen.

当容器内充满50万加仑的超冷液态氢时，绝缘泡沫可以防止冰在容器上形成。

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Using liquid hydrogen and oxygen in rockets will provide major advantages for landing astronauts on the moon.

以液氢和液氧为燃料的火箭将为宇航员登陆月球提供尤其重要的有利条件。

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The idea for the chemical engine is similar to that used on the space shuttle, liquid oxygen and liquid hydrogen.

化学发动机跟航天飞机使用的发动机类似，都是用液氧和液氢作燃料。

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If we take hydrogen peroxide in the liquid state, it can break down to form water and oxygen.

如果我们有一些液态的过氧化氢，它会分解成水和氧气。

麻省理工公开课 - 热力学与动力学课程节选

You take your room temperature liquid helium and you cool it with liquid nitrogen to 77 degrees Kelvin, the new, you're not quite there yet 77k unfortunately right? Then you take hydrogen you cool it would liquid nitrogen to 77, then you can use your hydrogen gas.

首先要有常温的氦气,拿液氮把它冷却到77k，那个新来的7,你不坐在那儿，对吧？,然后用液氮把氢气降温到,然后就可以使用这个氢气了，想要用氢气来做焦耳-汤姆孙实验。

麻省理工公开课 - 热力学与动力学课程节选

Water from asteroids could be broken down in space to liquid oxygen and liquid hydrogen for rocket fuel.

BBC: Plans for asteroid mining emerge

The Ariane's core stage, which is prepared in northern France, uses liquid hydrogen and liquid oxygen as its propellants.

BBC: New rocket could lift astronauts

This is fuelled by liquid hydrogen, which is powerful but difficult to handle because of the low temperatures involved.

ECONOMIST: Sayonara, spaceflight?