Helium gas was the thermometric fluid.
氦和氩都是单原子气体。
The helmet is made of a small, helium gas cylinder with special motion sensors.
头盔由带特殊的运动传感器的小氦气筒组成。
氦是一种很轻的气体。
Deflated values also mean that natural gas extractors see no reason to capture helium.
放气值也意味着天然气提取器认为没有捕获氦的需要。
Hendrix is almost right: helium is the second lightest gas known to man, behind hydrogen.
Hendrix几乎说对了：氦气是人类所知的第二轻气体，排名仅在氢气之后。
The Sun is rich in helium, as are the solar system’s gas giant planets.
太阳作为太阳系中的气体巨行星，氦含量丰富。
The Sun is rich in helium, as are the solar system's gas giant planets.
太阳作为太阳系中的气体巨行星，氦含量丰富。
Helium is the lightest rare gas.
氦是最轻的稀有气体。
Most commercial helium is recovered from natural gas through a cryogenic separation process.
大多数商用氦是通过一种低温分离过程从天然气中回收的。
氦气是钝气。
氦气是钝气。
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