友情提醒：点击
，可以收听真人发音
，可以收听真人发音 
小测验：选择正确的单词
- 论坛新贴
helium ['hi:liəm]
基本释义
- n. 氦
参考例句
- Helium leaking slowly from the Balloon.
氦气慢慢地从气球中漏走 - The antimatter equivalent of helium.
反氦与氦等价的反物质 - Helium is a noble gas.
氦气是钝气。 - Helium is a monatomic gas.
氦是单原子气体
- Helium leaking slowly from the Balloon.
英英解释
1个名词解释
- 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] he, helium, atomic number 2
- 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)