Based on the mechanocaloric effect of superfluid helium, a new way to produce super low-temperature was conceived and analyzed theoretically. 从超流氦的机械热效应出发,构思了一种制取极低温的试验方法,并从理论上进行了分析。
There's some helium and traces of heavier elements.
太阳中含有氦和少量较重的元素。
生活大爆炸 第8季
No, I do. II didn't write " superfluid helium" on this napkin for nothing.
我真的想听。我特意把超流氦写在餐巾纸上可不是白费的。
名人传记之史蒂芬·霍金
5 imperial gallons of the liquid helium. 5 You know how much helium that is?
英制加仑的液态氮你知道那是多少氮气吗?
生活大爆炸 第3季
You can't sink. With all that helium in you, you're lucky you don't float away.
你落不了,体内充满了氦气遇水不飘走就算你走运啦。
生活大爆炸 第8季
Yeah, I listen to what you say. You're building a particle detector using superfluid helium.
当然,你的话我都有好好听。你正在用超流氦打造一个粒子探测器。
当月 CNN 10 学生英语
Yes, helium, just like those birthday balloons.
是的,就是生日派对上气球里用的那种氦气。
Scishow 精选系列
And how, you ask, can we get more helium before we run out?
你会问,在我们消耗完氦之前,我们怎样能得到更多的氦呢?
VOA慢速英语_科技
They are made up of hydrogen and helium.
它们是由氢和氦组成。
生活大爆炸 第8季
Sheldon, this is superfluid helium. Put this in your mouth, your tongue will freeze and break off.
谢尔顿,这是超流氦。把这个放到嘴巴里,你的舌头就会冻成碎片。
当月 CNN 10 学生英语
Next up, a helium filled floating mode of transportation.
接下来要介绍的是一种利用氦气做能源进行漂浮飞行的方法。
英语百科
Helium 氦
Helium is a chemical element with symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas, the first in the noble gas group in the periodic table. The He boiling and melting points are the lowest among all the elements.
近义、反义、联想词
近义词
n.
chemical element, element, noble gas, inert gas, argonon
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)