1
helium is used in [noun]
用于说明氦的常见用途，后接名词或名词短语。
Helium is used in balloons and airships.
氦用于气球和飞艇。
氦
heliums — plural of helium
先理解核心含义，再看它在真实句子里的用法。
氦
a very light, colorless chemical element that is one of the inert gases and is very difficult to liquefy
Helium is used in balloons and airships.
氦用于气球和飞艇。
氦:第二轻的化学元素(符号He),原子序数2,原子量4.002602,无色、无味、惰性的稀有气体。
The second-lightest chemical element (symbol He), with an atomic number of 2 and atomic weight of 4.002602, a colorless, odorless and inert noble gas.
氦:该元素的一种形态或样品。
A form or sample of the element.
The balloons floated up because they were filled with helium.
气球飘了起来，因为它们充满了氦气。
Helium is much lighter than air, so it is often used in party balloons.
氦比空气轻得多，所以常被用于派对气球。
They use helium to test whether the pipes leak.
他们用氦来检测管道是否泄漏。
用于说明氦的常见用途，后接名词或名词短语。
Helium is used in balloons and airships.
氦用于气球和飞艇。
fill 后接容器，with 后接填充物。
They filled the balloon with helium.
他们给气球充了氦气。
helium 可直接修饰名词，表示“氦的、充氦的”。
The helium balloon floated up into the sky.
氦气球飘上了天空。
Not this
An helium balloon is lighter than air.
Use this
A helium balloon is lighter than air.
helium 以辅音音素 /h/ 开头，不定冠词应用 a 而不是 an；an 只用于元音音素开头的词。
Not this
Helium is more lighter than air.
Use this
Helium is lighter than air.
light 是单音节形容词，比较级直接在词尾加 -er 变为 lighter，不能再加 more；more 用于多音节形容词或副词构成比较级。
Not this
He filled helium into the balloon.
Use this
He filled the balloon with helium.
动词 fill 的搭配是 fill + 容器 + with + 填充物，而不是 fill + 填充物 + into + 容器。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
氦气球
The children each held a helium balloon at the party.
孩子们在聚会上每人拿着一个氦气球。
液氦
The magnet is cooled with liquid helium to a very low temperature.
磁体用液氦冷却到很低的温度。
氦气
Helium gas is used to fill airships because it is lighter than air.
氦气用于填充飞艇，因为它比空气轻。
氦原子
A helium atom has two protons in its nucleus.
氦原子的原子核中有两个质子。
氦原子核
Alpha particles are helium nuclei emitted by some radioactive substances.
α粒子是某些放射性物质发射出的氦原子核。
氦气罐
We rented a helium tank to fill balloons for the wedding.
我们租了一个氦气罐来为婚礼充气球。
还有钬、氦、铪和铒。
In Tom Lehrer's song 'The Elements', the word helium appears in a rapid list of chemical elements.
在汤姆·莱勒的歌曲《元素》中，单词“helium”（氦）出现在快速列出的化学元素表中。
Use heliums naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
helium 首音像英语 hi，想象气球灌满氦气后飘起来，向你 say hi。
语域：neutral 常见场景：chemistry、physics、industrial gas supply、balloon inflation “helium” 是标准化学元素名称，多用于科学、技术及日常气体应用（如气球充气）等场合，正式与口语中均可使用，建议按中性文体处理。
No common word rhymes with helium /ˈhiːliəm/. The listed words all end in the letters ‑ium but differ in stress and vowel; they are lookalikes, not rhymes.
Dictionary facts from ECDICT, WIKTIONARY.