he.li.um

helium的音标和读音：
DJ音标发音： [ˈhi:li:əm]
KK音标发音： [ˈhiliəm]

helium的词性：
n.Symbol He （名词）符号 He

1. A colorless, odorless inert gaseous element occurring in natural gas and with radioactive ores. It is used as a component of artificial atmospheres and laser media, as a refrigerant, as a lifting gas for balloons, and as a superfluid in cryogenic research. Atomic number 2; atomic weight 4.0026; boiling point ^-268.9⁼C; density at 0⁼C 0.1785 gram per liter.See table at element
氦：自然界天然气体或放射性矿石中一种无色、无味的惰性气体状成分。用作人造大气层和镭射媒体的组成部分，和用作制冷剂及飞行气球的气体，还在低温学研究中用作超流体。原子序数2；原子量4.0026；沸点-268.9⁼C；浓度在0⁼C时为每升0.1785克参见 element

helium的词源：

2. From Greek h?lios [sun (so called because its existence was deduced from the solar spectrum)] * see s3wel-
源自 希腊语 h?lios [太阳（该元素的存在首先是在太阳光谱中测得，故名）] *参见 s3wel-