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helium

美 [ˈhiːliəm]英 [ˈhiːliəm]
  • n.氦;氦气
heliumhelium

noun

U氦;氦气
a chemical element. Helium is a very light gas that does not burn, often used to fill balloons and to freeze food.

helium

频次

  • 1
    N-UNCOUNT
    Helium is a very light gas that is colourless and has no smell.

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

数据来源:WordNet

  1. Atoms of hydrogen are fused to make helium .

    氢原子可熔合成氦。

  2. Helium is a very light gas .

    氦是一种非常轻的气体。

  3. Helium is a gas used in balloons .

    氦是一种用于气球的气体。

  4. Some balloons are filled with hydrogen , some with helium .

    有的气球是用氢气充填的,有的则用氦气。

  5. Best short live action film : Helium

    最佳真人短片奖:《氦》

  6. Some white dwarves4 have almost pure hydrogen or helium atmospheres , but this star has an atmosphere unusually high in the heavier element , carbon .

    一些白矮星的大气中几乎只有纯氢或氦,但这颗星的大气中重元素碳的含量异常高。

  7. Conceptual Design for Experimental Main Loop with High Temperature Helium Gas

    高温氦气实验回路氢气主冷却回路的概念设计

  8. Design and test of liquid helium system of space simulator

    空间环境试验舱液氦系统设计与测试

  9. Influence of the flow velocity of liquid helium on its temperature measurement

    液氦自动补加实验液氦流动速度对温度测量的影响

  10. Theoretical analysis for experimental results of electron momentum spectroscopy of helium

    He原子电子动量谱学实验结果的理论分析

  11. Linear Variation Method for Calculating Energy Levels of the Helium Atom

    用线性变分法计算氦原子能级

  12. High Temperature Safe Operation of the Helium Test Loop

    氦气试验回路的高温安全运行

  13. Study on the data acquisition system of superfluid helium obtaining experiment

    超流氦获取实验液位数据采集与测试系统研究

  14. A Study on Analytic Method of Helium Isotope for Solid Sample

    固体样品的氦同位素分析方法

  15. Study and Application of Metal Mesh Filtration Technology in Liquid Helium Purification

    金属丝网过滤技术在液氦纯化中的研究与应用

  16. Application of soil helium measurement in fracture geothermal field exploration

    土壤氦气测量方法在控热构造勘查中的应用

  17. Development of a New Helium Refrigerator System

    气氦制冷系统的研制

  18. Time dependent density functional theory for high order harmonic generation of helium atom

    含时密度泛函方法模拟氦原子高次谐波的产生

  19. A new inversion simulation method for analyzing experimental data of helium bubble growth in materials

    氦泡生长实验数据的反演模拟计算方法

  20. The application of colour helium bubble in the wind tunnel test

    彩色氦气泡在风洞试验中的应用

  21. Study of the Method of Simulate Modeling Tests of Helium Expansion Turbines

    氦透平膨胀机相似模化试验方法的研究

  22. Partial wave analysis in exploring the structure of helium atom

    分波分析在探索氦原子结构中的应用

  23. Some Technical Problems in Positive Pressure Helium Leak Detection

    正压氦检漏的几个技术问题

  24. Points out the importance of application of helium leak detector .

    指出了氦质谱检漏仪在溴化锂制冷行业中应用的重要性。

  25. Improvement of helium purification technology on site of a launching station

    发射场氦气现场提纯技术

  26. Colour helium bubble flow visualization is a new and unique technique .

    彩色氦气泡流动显示是一极好的新技术。

  27. Fiberglass plastics for low temperature or liquid helium temperature use

    用于低温及液氦温度的玻璃钢

  28. Researches on temperature effects on leakage rate of helium permeating leak

    温度对薄膜渗氦型漏孔漏率的影响研究

  29. A system of metastable helium atom beam source has been developed .

    研究设计了一种亚稳态氦原子束源系统。

  30. Pressurized leak detection method by using helium mass spectrometer leak detector

    氦质谱检漏法应用研究氦质谱正压检漏法