helium
音标发音
- 英式音标 [ˈhiː.li.əm]
- 美式音标 [ˈhiː.li.əm]
- 国际音标 ['hi:liəm]
- 英式发音
- 美式发音
基本解释
- n. [化学] 氦（符号为He，2号元素）
词根记忆
- 氦的化学符号是He
英汉例句
- Helium is a very light gas.
氦是一种非常轻的气体。 - Helium is a gas used in balloons.
氦是一种用于气球的气体. - Unlike helium - 4, it cannot be produced by radioactive decay.
与氦 - 4不同之处是, 氦-3不能由放射性衰变产生. - Helium is a very light gas.
氦是一种非常轻的气体。 - Helium is a gas used in balloons.
氦是一种用于气球的气体.
词组短语
- helium survey [核]氦气测量;氦测量;氦气测量;氦气丈量
- helium liquefier [低温]氦液化器
- helium counter 氦计数管
- helium tank 氦气瓶;氦气罐
- helium nucleus 氦核
短语
英英字典
- a chemical element that is a gas lighter than air, that will not burn and is used in balloons, airships, and some types of lights
- Helium is a very light gas that is colourless and has no smell.
剑桥英英字典
柯林斯英英字典
专业释义
- 氦
The model was used in molecular dynamics simulation. The diffusion coefficient of Helium and small molecules in poly (chloro-p-xylylene) membrane was calculated by using the trajectory data and Einstein’s fluid equation.
以此为分子动力学数值模拟的输入模型,然后借用分子动力学数值模拟过程中记录的原子运动轨迹,结合爱因斯坦流体公式,导出了氦原子及小分子气体在聚氯代对二甲苯膜中的扩散系数。能源科学技术
- 氦
In this paper, a serial multiscale model is used to simulate the effect of helium on the mechanical properties of HR-2 alloy.
本文将串行的多尺度模拟方法应用于模拟氦对HR-2合金力学性能的影响。化学
- 氦
- 氦气
- 氦
- 氦;沼泽群落;盐沼泽群落
- 氦气
- 氦
- 氦