音标与读法

这里为大家介绍下helium 是什么意思，希望能帮助到各位朋友。

中英文翻译

n.

【化学】氦。 helium-4 氦4〔氦的最常见同位素〕。

a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)

同义词：He, atomic number 2,

Helium is a chemical element with symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas that heads the noble gas group in the periodic table.

例句与用法

1.A fountain of helium spurt out of the tube .

有一股氦的喷泉从小管中喷出。

2.Most big balloons are now filled with helium .

现在许多大气球中充的是氦气。

3.Helium is a gas used in balloons .

氦是一种用于气球的气体。

4.Helium was discovered on the sun .

氦是在太阳上发现的。

5.Hydrogen might be depleted with some of it turning into helium .

氢可能被耗尽，一部分变为氦。

6.One safety catch in his design is its helium coolant .

这次设计中采用的一个安全措施就是使用氦冷却剂。

7.After hydrogen, the atom with the simplest structure is that of helium .

在氢元素之后，氦的原子结构最简单。

8.The deuteron can fuse with another proton to make a helium 3 nucleus .

氘核可以和另一个质子聚合以生成一个氦3核。

9.When helium is cooled to very low temperatures, it forms an astonishing liquid .

当氦冷却到很低温度时，它会形成一种奇妙的液体。

10.The discovery also explains why helium is found in radioactive mineral deposits .

这个发现也解释了为什么在放射性矿渣中找到了氦。

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