helium是什么意思_helium的用法_词性_词根

双语例句

Helium is a colorless and odorless inert gas.

氦是一种无色无味的惰性气体。
Helium has the lowest boiling point of all elements.

氦是所有元素中沸点最低的。
The United States is a major supplier of helium worldwide.

美国是全世界氦气的主要供应者。
Some balloons are filled with helium.

有的气球是用氦气充填的
Helium is a very light gas.

氦是一种很轻的气体。
Atoms of hydrogen are fused to make helium.

氢原子可熔合成氦。
Helium is a gas used in balloons.

氦是一种用于气球的气体。
The pressure of the helium inside a blimp is about the same as that of the air outside, so the gas does not rush out.

气球飞艇内部氦气的压力和外部气压相近，因而气体不会溢出。
The inner envelope filled with helium in the head section of the blimp and the third built-in airbag at the tail is filled with ethane combustible gas.

飞船头部的内置气囊中充满了氦气，而置于尾部的第三节内置气囊则充满了乙烷可燃气体。

词根词缀

heli

太阳

heli

同根词

heliocentric adj. 以太阳为中心的；以太阳为中心测量（或考虑）的

-um

物

-um

forum n. 论坛；讨论会；法院；法庭；用于公开审判等事的广场；网络论坛
museum n. 博物馆；博物院
mausoleum n. 陵墓
dictum n. 正式声明；权威意见；格言；箴言
medium n. 媒介；途径；方法；手段；媒质；媒介物；传导体；溶剂；灵媒；巫师；招魂者；中等；中间；中庸；存储媒介
asylum n. 政治避难；精神病院；收容所；避难所

百科

氦（Helium）简写为He，其原子序为2，原子量为4.002602。是一种无色，无臭，无味，的惰性单原子气体。元素名来源于希腊文，原意是“太阳”。1868年法国的杨森利用分光镜观察太阳表面，发现一条新的黄色谱线，并认为是属于太阳上的某个未知元素，故名氦。氦在通常情况下为无色、无味的气体，是唯一不能在标准大气压下固化的物质。氦是最不活泼的元素。氦的应用主要是作为保护气体、气冷式核反应堆的工作流体和超低温冷冻剂。 2017年2月6日，中国南开大学的王慧田、周向锋团队及其合作者在《Nature Chemistry》上发表了有关在高压条件下合成氦钠化合物——Na2He的论文，结束了氦元素无化合物的历史，这标志着中国在稀有气体化学领域走向了最前端。

释义

the chemical element of atomic number 2, an inert gas which is the lightest member of the noble gas series. (Symbol: He).

氦（符号:　<Bold>He</Bold>）。

词源

"late 19th cent.:　modern Latin, from Greek hēlios　‘sun', because its existence was inferred from an emission line in the sun's spectrum."

Helium has an atomic number of two.

氦的原子数是2。

《The Big Bang Theory Season 7》《生活大爆炸第7季》
Ah, no money, no helium. Seems we're at a, stalemate.

不给钱，不给氦，看来我们陷入了"逼和"的局面。

《The Big Bang Theory Season 9》《生活大爆炸第九季》
You accidentally stare at a helium argon laser. Lose one turn and a retina.

你一不小心直视氦氩激光暂停一轮并失去一只眼睛的视网膜。

《The Big Bang Theory Season 3》《生活大爆炸第三季》
And then the word "He", it wasn't the masculine pronoun, but rather, "H-E," the abbreviation for helium.

然后单词"<em>He</em>"并非男性的代词，而是"H-E"氦元素的缩写。

《The Big Bang Theory Season 7》《生活大爆炸第7季》
But now we know what happens when you accidentally spill Peach Snapple into a helium neon laser.

但我们现在知道，你不小心把斯奈普桃汁掉进氦氖激光器的时候会发生什么了。

《The Big Bang Theory Season 2》《生活大爆炸第二季》
What ya doing, Skippy? Exactly what 1970s television crime dramas have taught us. You give us the helium first.

你这是干嘛，兽主甘？这是跟70年代的罪案连续剧学的，你先把氦给我们。

《The Big Bang Theory Season 9》《生活大爆炸第九季》
You see, instead of using liquid helium... Good God, man, shut up! Right, sorry.

我没有用液氦而是用... 妈呀，快闭嘴！对不起。

《The Big Bang Theory Season 11》《生活大爆炸第十一季》
I refuse to sink to his level. You can't sink. With all that helium in you, you're lucky you don't float away.

我才不要堕落到他那种水准。你落不了，体内充满了氦气，遇水不飘走就算你走运啦。

《The Big Bang Theory Season 3》《生活大爆炸第三季》
Not quite accurate. The Macy's balloons are filled with helium, whereas Leonard produces copious amounts of methane.

你说的不全对，感恩节气球里充的都是氦气，而莱纳德肚子里造出来的是大量的甲烷。

《The Big Bang Theory Season 4》《生活大爆炸第四季》
Now, to make this a Mexican standoff, I would say something like: You give us the helium or I'll turn you in to the authorities.

现在，要把情况变成"墨西哥对峙"，我会说些类似这样的话，"给我氦气，不然我就去当局告发你"。

《The Big Bang Theory Season 9》《生活大爆炸第九季》