The difficulties stem from the fact that the interaction between elementary particles and fields is really too violent for a satisfactory theory to be set up.
这些困难来源于这样一个事实：基本粒子和场之间的相互作用对于要建立一个符合要求的理论来说显得过于强烈了。
The energy of the particles and the fields in the magnetosphere can vary by large amounts.
带电粒子的能量大小与磁气圈中的磁场的大小变化极大。
Van Allen described how the Earth is surrounded by belts of high-energy particles — mainly protons and electrons — that are held in place by the magnetic fields.
范-艾伦描述了地球是任何被高能粒子带(主要是质子和电子)包围着，地球用磁场拉住它们。今天，这些辐射带被称为范-艾伦带。
Experiments conducted in its ALPHA laboratory found a way of using strong, complex magnetic fields and a vacuum to capture and hold the mirror-image particles apart from ordinary matter.
在ALPHA实验室进行的实验发现了一种使用复合强磁场和真空来使镜像粒子和普通物质分离开的方法。
The air goes over the whole ocean; over lakes, rivers, brooks, and springs; over woods and fields, and everywhere it takes in particles of water. What becomes of them ?
大气笼罩着整个的海洋，覆盖着所有的湖泊、江河、溪流和泉水，覆盖着所有的森林和土地，流动的空气到处在吸收水分，这些水分到哪里去了呢？
To detect such a tiny force, the NIST team confined about 60 ultra-cold beryllium ions in a device called a Penning trap, which USES magnetic and electric fields to imprison charged particles.
为了测出如此微小的力，国家标准和技术学会的团队将大约60个超冷铍离子装在一个叫做“潘宁陷阱”的装置中，该装置是利用磁场和电场禁锢带电粒子的。
Both craft recorded the density of particles and the strength of the magnetic fields.
两个探测器都记录了粒子密度和磁场强度。
Bosons include mesons, nuclei of even mass number, and the particles required to embody the fields of quantum field theory.
玻色子包括介子、偶质量数的原子核以及体现量子场论中的场所需要的粒子。
To do that, CERN built the Antiproton Decelerator, which USES electric and magnetic fields to slow the particles from near light speed to about one-tenth of that, he said.
为了要做那些，CERN建造了反质子加速器，他说，使用电场和磁场把接近光速度的粒子减慢到光速的十分之一左右。
Couple stress fluids are the fluids consisting of rigid, randomly oriented particles suspended in a viscous medium, which have been widely used in scientific, industrial and clinical fields.
应力偶流体是一种粘性介质，其中悬浮着刚性的、随机排列的粒子，在科学和工程技术、医疗临床中具有广泛的应用背景和现实意义。
Filtration can currently separate particles from sand to ions, depending on the process used. Hydrocyclones and centrifuges employ centrifugal fields to fling the particles right out of suspension.
过滤通常被用于分离小颗粒，从砂粒到离子都可以，由具体使用的方法而定。水力旋流器和离心机则利用离心力场将粒子抛出悬浮液。
Within a small compass hundreds or thousands of feet of grid edges divide and re-divide the stream so that all particles must pass through a succession of strongly convergent magnetic fields.
小罗盘上有成百上千的栅格边，可将溪流分开或再分，这样，所有粒子都要通过一系列吸附性的强磁场。
Owing to the small size effect, high surface effect and quantum size effect, nano particles exhibit excellent characters in catalyst fields.
由于纳米微粒的小尺寸效应、表面效应和量子尺寸效应，使其在化学催化领域中呈现出十分优异的性能。
The belief in simplicity of Nature, which founded western scientific and technological optimism, was shaken by numerous findings, be it in fields such as thermodynamics or elementary particles.
确信自然界的简朴性，这是西方科技观的依据，它已被某些领域(如热力学、基本粒子)的许多研究成果所动摇。
The gas flow fields were simulated by a Reynold's stress Transport Model(RSTM) and the stochastic tracking approach was used for simulating the trajectories of particles in a turbulent current.
在数值预测时，气相场采用雷诺应力输运模型，应用随机轨道模型来模拟湍流流场中颗粒的运动轨迹。
Optical rotation technology has been used in many fields as manipulating a single micron, submicron particles, and has broad prospects for development.
光致旋转技术已经在很多领域被用来作为操纵单个微米、亚微米级微粒，具有广阔的发展前景。
The first step in learning how to deal with this schizophrenic personality is to understand how single particles behave in electric and magnetic fields.
研究这种双重个性的第一步是了解单个粒子在电场和磁场中具有怎么样的行为。
Furthermore, the identify on line of flow model and relationship of quality flux and light projections have been elementarily found through plenty of experiments on quartz particles flow fields.
针对石英砂颗粒流场进行了大量的实验，并初步得到了石英砂颗粒流场流型的在线识别以及质量流量与光束投影和之间的关系图。
In the auroral region we have precipitation of energetic particles, currents in the upper atmosphere and ionosphere, and fluctuating magnetic fields.
极光发生的地区沉淀着高能粒子，高层大气流和电离层，和上下浮动的磁场。
This paper makes a summary of the photocatalysis principle of nano semiconductor particles and its application , research and merits in air purification fields.
介绍了纳米半导体材料的光催化机理，净化空气的优点和国内外相关产品开发、应用的情况。
Therefore, the SERS technology with the silver nano-particles as the SERS-active substrate has been widely applied in many fields, such as biology, physics, chemistry, material and so on.
这使得以纳米银颗粒作为活性基底的SERS技术在生物、物理、化工、材料等领域都有着广泛的应用。
When external magnetic fields are absent, there may be a competitive growth between (100) and (111) surfaces; and the final morphology of particles are irregular polyhedra.
而当外磁场不存在的时候，(111)面和(100)面可能存在竞争生长的关系，从而纳米粒子呈现不规则的多面体形。
This kind of instrument can be used to separate various calls and particles in medicine biochemical and bioresearch fields as important equipment.
该机适用范围广是医药卫生、生化、科研等部门快速分离各种细胞、颗粒样品的重要设备。
The nano-composite coatings have many functions and high performance can be manufactured by putting appropriate nano-particles into polymer and they can be applied to many fields.
选择不同功能的纳米材料与种类繁多的聚合物通过恰当的匹配可制备出一系列多功能、高性能的纳米复合涂料，广泛的应用于建筑、木器和汽车涂料等诸多领域。
The experimental results show that the proposed method is a robust algorithm for measuring the movement of particles and the vector fields can be obtained with high precision.
结果表明，该算法在分析精度方面有很大的提高并且具有很强的鲁棒性。
The experimental results show that the proposed method is a robust algorithm for measuring the movement of particles and the vector fields can be obtained with high precision.
结果表明，该算法在分析精度方面有很大的提高并且具有很强的鲁棒性。
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