helium

A colorless, odorless, tasteless, gaseous mixture, mainly nitrogen(approximately 78 percent) and oxygen(approximately 21 percent) with lesser amounts of argon, carbon dioxide, hydrogen, neon, helium, and other gases.

空气一种无色、无嗅、无味的气体混合物,主要由氮气(约占78%)和氧气(约占21%)组成,还有少量的氩、二氧化碳、氢、氖、氦及其它气体。

Helium and neon are inert gases.

氦和氖为惰性气体。

The antimatter equivalent of helium.

反氦与氦等价的反物质

Helium was discovered on the sun.

氦是在太阳上发现的。

Most big balloons are now filled with helium.

现在许多大气球中充的是氦气。

A fountain of helium spurt out of the tube.

有一股氦的喷泉从小管中喷出。

Helium is a gas used in balloons.

氦是一种用于气球的气体。

Atoms of hydrogen are fused to make helium.

氢原子可熔合成氦。

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。

The element of helium was first found in the sun.

氦元素最初是在太阳里发现的。

Humans possess no senses that can detect the presence of helium.

人类没有能够探测到氦的存在的官能。

You can be a helium hea without even trying.

你真是个大傻瓜,甚至连试都不试一下。

Hydrogen provided more lift than helium.

氢气的上升性能优于氦气。

It gets the hydrogen and helium right.

根据结果表示,氢元素和氦元素都比较正常。

Helium is a monatomic chemically inert gas.

它是单原子惰性气体。

Remember, helium has no warning properties!

记住,氦没有警告性特征。

Helium and argon are monatomic gases.

氦和氩都是单原子气体。

Helium gas was the thermometric fluid.

氦气是测温液体。

What are the purposes of helium and nitrogen gas?

氦气与氮气在这套系统中有何作用?

He plans to circumnavigate the world in a helium balloon.

他计画搭乘氦气球环绕世界一周。

A pillow stuffed with feathers; balloons filled with helium.

用羽毛装满的枕头;装满氦气的气球

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。

Technically, the helium's rotational inertia decreases.

用专有名词来说明,就是氦的转动惯量降低了。

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

氢可能被耗尽,一部分变为氦。

The atmospheric helium isotope ratio: Is it changing?

大气氦同位素比率在变化吗?

A pillow stuffed with feathers;balloons filled with helium.

用羽毛装满的枕头;装满氦气的气球

He tied them to a lawn chair and filled them with helium.

他将气球绑在折椅上并注入氦气。

If we have reached the Helium pressure the time T18 starts.

如果我们达到了氦气压力,时间T18就开始了。

The release of hydrogen and helium from coal universally exists.

煤中普遍存在着氢气氦气的释放。

Modern blimp s use helium instead of hydrogen to maintain buoyancy.

现代软式小飞艇,利用氦取代氢来保持浮力。

The bizarre behavior of superfluid helium has attracted many able theorists.

超流体氦这些异乎寻常的行为吸引了许多有才干的理论物理学家。

Jupiter, Saturn, Uranus, and Neptune are primarily hydrogen and helium.

木星,土星,天王星以及海王星的大气主要是氢和氦。

Liquid helium is most frequently provided to customers in a liquid container.

液氦主要是存储在液体容器中提供给用户。

So, it has an atmosphere of light-weight elements: hydrogen and helium.

因此,它的大气层由重量很轻的元素:氢和氦构成。

A dense core of incandescent helium is surrounded by a thin shell of hot, fusing hydrogen.

一个由白炽的氦形成的稠密的核外面包围着一层炽热熔化的氢薄壳。

The force between a pair of helium atoms is so weak that helium does not solidify at all.

一对氦原子之间的作用力微弱得使氦根本不能固化。

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。

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。

These react to form helium, yet more neutrons and a whole lot more energy.

这些混合物发生反应后就形成氦元素,并同时生成更多的中子与大批量的能量。

They also discovered that the helium in the balloons would last for six hours.

他们也发现汽球中的氦气有效时限可达六小时。

You tie a helium balloon to your head and hope it acts like a mana shield.

你将一个氦气球系在头上,指望它能起魔法护罩的作用。

All full-penetration joints shall be back purged with argon or helium.

所有全熔透焊接接头用氩或氦进行反吹。

Gaseous helium is inert, colorless, odorless, non corrosive, and nonflammable.

气态氦极不活泼,无色,无嗅,无腐蚀性,不可燃。

All shipments of compressed helium must comply with DOT regulations.

所有压缩氦的运输必须遵守DOT的规定。

Application of metastable helium atomic beam in nanostructures fabrication[J].

引用该论文 陈献忠,姚汉民,陈旭南.

Note that sonication was less effective than either helium or vacuum treatment.

注意超声比通氦或者真空处理的效果要差。

The approximative calculation for the artificial helium molecule[J].

引用该论文 井孝功,赵永芳,康秀杰.

Nuclear fusion has created helium, carbon and other chemical elements.

核聚变已产生了氦气,二氧化碳和其他化学元素。

Being both lighter than air and nonflammable, helium is used to inflate balloons and airships.

由于既比空气轻又不可燃,氦用作充气球和飞艇。

Helium and neon measurements provide further evidence that the earth was not completely melted.

氦和氖的测定,提供了更多的关于地球并非全部熔融的证据。