1) isotopic invariance
同位旋不变性
2) corresponding base
同位
1.
Linguistically and philosophically, we proved that, firstly, the double corresponding relation that relies on different corresponding base is illustrated by two different understandings: a literal one and a dislocated one.
探讨了英语对等句中两个名词短语间的双重同位关系,论证了以下两个观点:1、双重同位关系的产生源于同位基的不同,这种同位关系外在地表现在对等句理解过程中的字面理解和错位理解,而后者正是隐喻存在的基础;2、对等句的理解过程是有序的,严格遵循由默认值定义域中取值(现实世界中的理解)再到另设定义域中取值(可能世界中的理解)这一过程。
3) parity
同位
4) allo-
同位-
5) isotope
同位素
1.
Discussion On Geology and Isotope Characters of Jiusangou Gold Deposit in Wangqing,Jilin Province;
吉林汪清九三沟金矿床地质及同位素特征探讨
2.
Gas isotope characteristics analysis in the south of eastern sag in Liaohe Basin;
辽河盆地东部凹陷南部地区天然气的同位素特征及成因
3.
Primary discussion on isotope characteristics of coalbed gas of Qinshui basin;
沁水盆地煤层气同位素特征及成因类型初探
6) non-staggered grid
同位网格
1.
The finite volume method in the non-staggered grid was applied to the prediction of the two-dimensional branched polymer melts through a 4∶1 planar contraction and planar contraction with inset.
选取基于Doi-Edwards模型发展起来的XPP模型作为聚合物浓厚体系的本构关系,采用同位网格有限体积法结合数值求解的稳定化技术首先对4∶1平板收缩流进行了全域模拟,而后对聚合物成型中常见的嵌件收缩流进行了模拟。
2.
The governing equations were established for the viscous,incompressible,Newtonian fluids,which were discretized by the finite volume method based on non-staggered grid.
进而将Level Set算法和同位网格有限体积法进行耦合,模拟了注塑成型充填阶段的三维流动过程,准确追踪到了不同时刻熔体前沿界面,预测并分析了流动过程中不同时刻的压力、速度等重要流动特征。
7) Pb isotope
铅同位素
1.
Study on characteristics of S,Pb isotopes of the Pb-Zn deposits,Au deposits in Xicheng area and their metallogenic relationship;
西成地区铅-锌矿、金矿硫铅同位素特征及成矿关系的研究
2.
Comparative studies on Pb isotope ratios of corrosion rinds and metal cores of bronze vessels;
古代青铜器基体与其锈蚀产物铅同位素对比研究
3.
Based on a systematic lithologic and sedimentary facies analysis,this paper deals in detail with Pb isotope characteristics of dolomite and associated limestone in the Long'eni-Angdar Co ancient oil accumulation.
以系统的岩石学及沉积相分析为基础,深入探讨了隆额尼—昂达尔错古油藏白云岩及其伴生灰岩的铅同位素特征,认为该区白云岩及伴生灰岩具有统一的铅来源,铅主要来自中央隆起带变质岩、岩浆岩及再旋回沉积的三叠系地层,为地幔、造山带、地壳等多源混合的异常铅。
8) sulfur isotope
硫同位素
1.
The lead and sulfur isotope analysis suggests that the tremendous thick and stringer ore bodies may be formed by fluid of different geologic periods.
铅和硫同位素都揭示了层状(块状)和脉状矿体可能来自不同时期的成矿流体。
2.
The new method of the thermal ionization mass spectrometry permits analysis of sulfur isotope with a precision for δ34S of 0.
环境样品的硫同位素比值能够提供硫的来源及其在环境中扩散迁移的相关信息。
3.
Acid rain has been one of the most serious environment problems in the world and the study of sulfur isotope can help us find the sulfur source,composition and have important significance for research to harness acid rain.
酸雨已经成为全球环境主要的问题之一,而硫同位素的研究对于探讨酸雨的来源、组成与酸雨的治理具有重要的意义。
9) hydrogen isotope
氢同位素
1.
The free carbon and hydrogen isotopes in n-alkane from the Paleozoic source rocks in Huanghua depression are determined using techniques of GC-IRMS and GC-TC-IRMS to reveal the isotope compositions in different sedimentary environments.
以黄骅坳陷古生界烃源岩作为研究对象,采用GC-IRMS和GC-TC-IRMS技术对烃源岩抽提物中的正构烷烃单体碳、氢同位素进行测定,揭示不同沉积环境中正构烷烃单体碳、氢同位素的组成特征。
2.
Palladium-hydrogen system has the largest isotope effect in the metal-(hydrogen) systems so far as we know,so palladium is widely used in hydrogen isotopes(disposal) technology.
在迄今所知的金属-氢体系中,钯氢体系的同位素效应最强,因此,钯被广泛用于氢同位素处理工艺中。
3.
In addition,the experiment working standard of H2 was certified by H2 /H2O(l) equlibrium H/D isotope analysis associating with hydrogen isotope fractionation equilibrium.
采用Gasbench-IRMS对水平衡氢同位素质谱分析影响因素进行了研究,确立了分析方法。
10) carbon isotopes
碳同位素
1.
On the basis of characteristics of geochemistry of Wengu 2 well natural gas,The formation is studied in this paper by using the methods of compare Carbon isotopes,Helium Argon isotopes of Wengu 2 well natural gas with coal-derived gas and oil-derived gas of Huabei area.
在对天然气地球化学特征研究的基础上,对文古2井天然气碳同位素、氦同位素、氩同位素与华北地区煤成气、油型气的这些同位素进行了类比,并结合地质背景综合分析了天然气的成因。
2.
On the basis of analysising chemical composition, carbon isotopes of natural gases and inclusions in volcanic rock, the authors discover that abiogenic natural gases exist in Xujiaweizi area.
烃类气体中具有重碳同位素异常 ( >- 2 0‰ )和负碳同位素系列(δ13C1>δ13C2 >δ13C3)的同位素分布特征 ,表现出无机成因烃类气体的特点。
3.
The maximum relative deviation of composition contents is less than 10%,and the maximum absolute deviation of carbon isotopes is less than 1‰.
对南方海相烃源岩进行吸附气和酸解气脱气方法研究,并对其组分进行色谱和同位素分析,该方法组分含量的最大相对偏差小于10%,碳同位素值的最大绝对偏差小于1‰。
补充资料：同位旋
| 同位旋 isospin 反映自旋和宇称相同、质量相近而电荷数不同的几种粒子归属性质的量子数。粒子的性质之一。实验表明，核力具有电荷无关性，质子和质子、中子和中子及质子和中子之间的核力是相同的，这说明就核力的性质而言，质子与中子之间没有区别，因此把质子和中子看成同一种粒子的两种不同状态，类比自旋的概念引入抽象的同位旋空间，质子和中子是同位旋I相同，同位旋第3分量I3不同的两种状态，由此可确定它们的同位旋I＝1／2，质子的I3＝1／2，中子的I3＝－1／2，它们组成同位旋二重态，它们质量上的微小差异来自I3的不同，犹如自旋取向不同引起自旋-轨道耦合的微小能量差异。同样Σ±、Σ0组成同位旋三重态，它们的同位旋I＝1，同位旋第三分量I3分别为±1和0。原子核的同位旋可由质子和中子的同位旋“合成”得到，强子的同位旋由组成强子的夸克的同位旋“合成”得到。强相互作用下系统的同位旋和同位旋第三分量均守恒。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条