helium是什么意思 helium在线中文翻译

helium 英 [ˈhi:liəm] 美 [ˈhiliəm]

helium 词典解释

名词<化>氦

helium 网络解释

  1. ...室温下的方均根速度范围约从[[氦]](helium)的 1370 m/s ,到[[氙]](xenon)的 240 m/s 之间. 对於分子气体则更复杂;例如双原子气体每分子约有5个自由度....
  2. 氦气
    ...氢气'氦气(Helium)定量检漏仪氢气'氦气(Helium)定量检漏仪产品简介RIC3000型氢气'氦气(Helium)定量检漏仪目前该仪器被认证可在可燃大气中使用,仪器用氦气(Helium)按ml/sec(毫升/秒)单位进行定量校正,便具有检测其它气体的能力....
  3. [化]氦
    ...halo [气](日月周围的)晕轮 | helium [化]氦 | hemoglobin [生化]血红蛋白...
  4. 氦 沼泽群落
    ...helitronoscillator 螺线管振荡器 螺旋管振荡器 | helium 氦 沼泽群落 | helium-atmosphere 氦保护 氦气氛...

helium 英英释义

noun
  1. 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)
    Synonym: He atomic number 2

helium [ˈhi:liəm]

托福
中文翻译
1
n. [化学] 氦(符号为He,2号元素)
英语释义
1
n. 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)