Helium(He)
网络氦
英英释义
Helium(He)
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)
同义词：Heatomic number 2
双语例句
1."Intwoyearswewilldoanotherexperimentwiththesameequipment,butthis timewithmuonichelium,"headded.“未来的两年我们会用相同的设备去做另一个（测量质子大小的）实验，但这次是用μ氢，”他补充道。2.Forexample,Helium(He)(Greek:"helios"="thesun") was found when light from the sun was studied duringaneclipsein1868.比如说，氦（He）（希腊语：‘helios’=“太阳”）从一次1868年日食时候的太阳光中发现。权威例句
LD50 = Lethal Dose Causing Death in 50 % of the Subjects N2 = Nitrogen N2O = Nitrous OxideElectron impact ionization and multiphoton ionization of doped superfluid helium droplets: A comparison
Conceptual Designs for a Spallation Neutron Target Constructed of a Helium-Cooled, Packed Bed of Tungsten Particles
Oscillating ionization probability of hydrogen and helium atoms in a single XUV attosecond and delayed few-cycle infrared laser pulses
Many-body calculation of helium ¹D–³D term intervals for 1snd (n = 12 ∼ 20) high Rydberg states
In-situ administration of dendritic cells following argon-helium cryosurgery enhances specific antiglioma immunity in mice
Effect of Helium-Neon Laser on Fast Excitatory Postsynaptic Potential (f-EPSP)of Neurous in the Isolated Rat Superior Cervical Ganglia
Many-body calculation of helium D-1-D-3 term intervals for 1snd (n=12 similar to 20) high Rydberg states
Temporally and spatially controllable gene expression and knockout in mouse urothelium. Am J Physiol Renal Physiol 299(2):F387-F395
Linear Variation Method for Calculating Energy Levels of the Helium Atom
1. He also invented the Skyhook, an air rescue system that involved an airplane and a large helium balloon.
他还发明了高空吊运车，这是一种为飞机和大型的氦气球的空中救援系统。
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2. The airbags will inflate with helium as soon as a specially engineered valve blows open.This valve can be triggered manually or automatically, he said, depending on the customer's requirements.
当一个特殊的启动阀门被打开以后气囊会迅速的充满氦气，阀门的启动可以采用人工或自动的方式打开，他说这可以根据用户需求来设计。
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3. The airbags will inflate with helium as soon as a specially engineered valve blows open. This valve can be triggered manually or automatically, he said, depending on the customer's requirements.
当一个特殊的启动阀门被打开以后气囊会迅速的充满氦气，阀门的启动可以采用人工或自动的方式打开，他说这可以根据用户需求来设计。
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4. He tied them to a lawn chair and filled them with helium.
他将气球绑在折椅上并注入氦气。
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5. He may look like E.T. 's scrawnier brother, and sound like Yoda on helium, but in his heart he's a giant.
它看着或许像是变形的ET，听着或许像是吸了氦气的尤达大师，但是它的内心深处其实是个巨人。
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6. He has spent two decades and nearly $20 million in a quest to fly to the upper reaches of the atmosphere with a helium balloon, just so he can jump back to earth again.
他把他过去20年的时光用来尝试做一件事情：乘坐氦气球飞到大气层的外缘，然后从那里纵身一跃，跳回地球。 为实现这个目标，20年来他已花费2000万美元。
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7. And there he was able to identify the alpha particle as the helium nucleus.
他证实了，阿尔法粒子就是氦核。
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8. Objective To researcheutic effect the therapy and mechanism of local and acupoint irradiation with low-energy helium (He)neon(Ne) laser for pulmonary tuberculosis cavity.
目的探讨低能量氦-氖激先局部加穴位照射对肺结核空洞的治疗作用机理。
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9. As the normal suppression method, pure helium is gradually replaced with He-Ar mixed gas for economical efficiency, especially the he content is more than 50%.
常用的抑制方法是侧吹氦气，而采用氦氩混合气体可降低生产成本，特别是当氦气含量高于50%时。
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10. Results: After breathing He-O2 containing 60% helium, VC and ERV increased enormously, while IC decreased mildly, among which the change of ERV showed significant difference (P).
结果呼吸含60%氦的氦氧混合气体后，肺活量、补呼气容积呈大幅增加，深吸气量呈轻微下降变化，其中补呼气容积前后变化具有显著差异（P
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11. Objective: Discuss the benefit liver Fang he argon helium knife curing centring later period liver cancer patient cellular immunity function effect and clinical significance.
目的：探讨益肝方合氩氦刀治疗对中晚期肝癌患者细胞免疫功能影响及临床意义。
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12. With these equations we have designed for helium-cadmium lasers a new type of helium replenisher, which has lengthened the life time of a He-Cd laser to over 1000 hours so far.
按此方程所设计的用于长寿命氦—镉激光器的新型氦补充器，使氦—镉激光器寿命已超过一千小时。
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13. With these equations we have designed for helium-cadmium lasers a new type of helium replenisher, which has lengthened the life time of a He-Cd laser to over 1000 hours so far.
按此方程所设计的用于长寿命氦—镉激光器的新型氦补充器，使氦—镉激光器寿命已超过一千小时。
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Helium(He)
