1)helium behavior氦行为
1.Aimed at helium embrittlement in metals,Fe and C doped aluminum samples irradiated with He~+ were chosen to investigate the effect of alloying elements on helium behavior in aluminum.本文着重研究了预先掺杂的Fe、C原子对He~+辐照铝的表面形貌、微观结构、氦热释放行为的影响及与掺杂剂量的关系,从而对合金元素在金属氦行为中的角色有了较深入的认识。
2.Effect of carbon doping on helium behavior in aluminum was investigated by thermal helium desorption spectrometry(THDS).通过离子注入技术在铝中引入C,He两元素,并采用氦热脱附谱(THDS)研究了C掺杂对铝中氦行为的影响。
英文短句/例句
1.Effect of Carbon Doping on Helium Behavior in Aluminum Studied by Thermal Helium Desorption Spectrometry氦热脱附谱研究碳掺杂对铝中氦行为的影响
2.The Research on Intermediate Phase Hydrides and the Behavior of Helium Atoms in LaNi_5-based Hydrogen Storage Material;LaNi_5储氢材料中间相和氢化物中氦行为研究
3.Development of Evolution of Helium in Metal Tritides金属氚化物中氦行为的研究现状与发展趋势
4.Deposition, Characterization of Helium-containing Ti Film, and Its Annealing Behaviour;含氦钛膜的制备、表征及退火行为研究
5.The Effect of Interatomic Potentials on the Action of Helium in α-Fe;相互作用势对氦在α-Fe中行为的影响
6.The Annealing Behavior of Helium Bubble in Metals Studied by Ion Beam Analysis离子束分析研究金属中氦泡的退火行为
7.Molecular dynamics simulation of helium cluster growth in titanium金属钛中氦团簇生长行为的分子动力学研究
8.The bizarre behavior of superfluid helium has attracted many able theorists.超流体氦这些异乎寻常的行为吸引了许多有才干的理论物理学家。
9.Optical properties revealing annealing behavior of high-temperature He-implantation induced defects in silicon carbide碳化硅中氦离子高温注入引入的缺陷及其退火行为的光谱研究
10.Helium and neon are inert gases.氦和氖为惰性气体。
11.The Effect of He-Ne Laser Acupoint Irradiation on Behavior and Neuronal Proliferation after Hypoxia-ischemia in Neonatal Rats Brain;氦氖激光对缺血缺氧性脑损伤新生鼠行为学和脑神经细胞增殖的影响
12.Hydrogen might be depleted with some of it turning into helium.氢可能被耗尽，一部分变为氦。
13.The planets' strong force of gravity holds huge amounts of hydrogen and helium gas.行星的巨大引力吸引了大量的氢气和氦气。
14.The observation of the curative effect of treating hemorrhoids by using hot spring spray-up bath and helium-neon laser温泉上行浴及氦—氖激光治疗痔疮的疗效观察
15.All full-penetration joints shall be back purged with argon or helium.所有全熔透焊接接头用氩或氦进行反吹。
16.Operating and energy saving analysis of screw compressors for helium cryogenic system氦低温系统螺杆压缩机组运行分析及节能优化
17.They would form helium and a subatomic particle, called a neutron.聚变后形成氦以及一种称为“中子”的亚原子粒子。
18.The antimatter equivalent of helium.反氦与氦等价的反物质
相关短句/例句
He氦
1.The effect of He-Ne laser intravascular irradiation therapy on the hemorrheology and anti-oxidizing power in severe traumatic brain injury;氦氖激光血管内照射对重型颅脑损伤患者血液流变学及抗氧化能力的影响
2.Effects of He-Ne laser repeated irradiation on expression of gene-associated with apoptosis in scar fibroblasts in vitro;氦氖激光重复照射对培养瘢痕成纤维细胞凋亡相关基因表达的影响
3.The thermal desorption was used to investigate the He release from titanium tritide films with He and Ti atom ratio n(He)/n(Ti) from 0.在低于1 300 K范围内,氚化钛膜共有4种氦的热释放峰,分别对应于贯穿至表面的氦泡、近表面的氦、体相中的氦泡和氦的小团簇。
3)helium[英]['hi:li?m][美]['hil??m]氦
1.Analytical method of helium in liquid hydrogen;火箭推进剂液氢中氦的分析方法
2.Implanting Helium into Nanocrystalline Hydrogen Storage Alloy (In Chinese);纳米贮氢材料充氦技术研究
3.Gas Chromatographic Analysis of Helium, Neon and Hydrogen in Natural Gas;气相色谱法分析天然气中氦氖氢
4)behavior[英][bi'heivj?][美][b?'hevj?]行为
1.Environmental Response and Behavior of Heavy Metal in Soil;重金属在土壤载体中的行为和环境响应
2.Pupils' Knowledge and Behavior of Road Traffic Safety in Chongqing;重庆市小学生道路交通安全知识与行为调查
3.The Behavior Harm and Prevention of Thallium in Nonferrous Attractive Metallurgy;铊在有色冶炼过程中的行为、危害及防治
5)behaviour[英][b?'he?vj?(r)][美][b?'hevj?]行为
1.Oral Health Behaviour of 6～7 years old 1356 School Children in Yichang City;湖北省宜昌市6～7岁儿童口腔健康行为及其影响因素
2.Design and analysis of pupils behaviour scale;小学生行为问题调查表的设计与分析
3.Study of dynamic behaviour of horizontal-axial-roadheader as transverse cutting;横轴式掘进机横向截割的动力学行为研究
6)behaviors行为
1.Study on behaviors of PO_4~(3-)in the sediment of the West Lake using isotope trace technique.;利用核素示踪技术研究磷酸根在杭州西湖沉积物环境中的行为
2.Analysis on Traffic Behaviors and Influence Factors of Community Residents in Nanjing;南京市社区居民道路交通行为及其影响因素分析
3.Effects of hyperthermia combined with radiation on nervous system and behaviors of infant mice;高温联合辐射对仔鼠神经系统与行为的影响
延伸阅读
氦氦helium一种化学元素，化学符号He，原子序数2，原子量4.002602，属周期系零族，为稀有气体的成员之一。元素的英文名称来源于希腊文hlios，含义是太阳。1868年法国P.-J.-C.让桑和英国J.N.洛克耶两位天文学家在利用分光镜观测太阳光谱时，发现一条不属于当时已知元素的黄线，他们肯定这是一种新元素。1888～1895年美国W.F.希尔布兰德和英国W.拉姆齐用硫酸处理沥青铀矿时，得到一种气体，用光谱分析证实它就是让桑和洛克耶发现的元素。氦在地壳中的含量极少，仅6.9×10-5％（重量百分），但在整个宇宙中则仅次于氢，占23％。氦在空气中的含量为0.0005％，在天然气中则高达1％～2％。在沥青铀矿、独居石、钇铀矿、褐钇钽矿中也含氦。氦有两种同位素，氦4是主要存在形式，氦3是氚的放射性产物。氦氦是无色、无臭、无味的气体，熔点－272.2℃(2.5×106帕），沸点－268.9℃，气体密度0.1785克／升（0℃，1×105），帕界温度－267.8℃，临界压力2.26×105帕，在水中的溶解度8.61厘米3／千克水。氦有两种液相：He（I）为高温液相，是一种普通液体，当温度下降至2.18K时，He（I）变为He（Ⅱ），后者是一种超流体，具有气体性质。氦主要从天然气中获得或从以天然气为原料的工业生产中得到，例如以天然气为原料合成氨时，，可从尾气中回收氦。氦用于充填高空气球和飞艇，不会发生燃烧或爆炸。在焊接和熔炼稀有金属时用作保护气体。按一定比例配成的氦-氧混合气是供潜水员呼吸用的气体。还可做温度低于14K的超低温制冷剂和气相色谱法中用的载气。
