查询词典 magnetic material

Our interceptive oil removal material and corresponding water treatment technology have taken the lead in the world, and our magnetic-gain iron removing device is leading in China for its high efficiency and low energy consumption.

本公司发明的阻截除油材料和相应的阻截除油水处理工艺处于世界领先水平，磁增益除铁装置以其高效低耗处于国内领先。

Only in lower β situation (For example: the value of β at the equator of the sun's surface is 0.25 or less), can we reappear the typical shape of looplike CMEs: the legs of the looplike CMEs at the surface appear between the open and closed magnetic field, show little movement in the latitudinal direction; the initial change of the top material appears on both sides of the current sheet during its outward propagation, the relative variation of density at the top becomes less than both sides.

只有在β较小(如太阳表面赤道处β〓等于0.25)的冕旒背景下，才可重现典型类环状CMEs观测形态：足部出现在开场与闭场的交界面上，在纬向基本不动；CMEs顶部物质密度变化在传播过程中比两侧物质密度变化小。

By dehydrochlorination reaction the poly[(2-methoxyl-5-octyloxy)phenylene vinylene] is synthesized and the material"s structure is characterized by nuclear magnetic resonance spectroscopy, infrared absorption spectrum, ultraviolet and visible spectrophotometry. At the meantime, the fluorescence spectrum is measured and the mechanism of fluorescence occurring is analyzed. Thermal Gravimetric Analyzer"s results show that the MO-PPV"s thermal stability is fine. Also the experiment of resolvable property indicates that the MO-PPV can well dissolve in chloroform. Through analyzing the film"s surface by Metaloscope and Atomic Force Microscope, the good filming is found.

通过脱氯缩合法合成了聚(2-甲氧基-5-辛氧基)对苯乙炔，并分别用核磁共振波谱法、红外吸收光谱法、紫外-可见分光光度法等对其进行了结构表征；测量了样品的荧光光谱，分析了荧光产生的机理；热失重仪分析了材料的热稳定性，研究表明MO-PPV材料具有良好的热稳定性；溶解性实验发现材料在氯仿中溶解性较好；金相显微镜和原子力显微镜研究了薄膜的表面形貌，发现该材料的成膜性良好；材料的导电性研究表明，固体材料在掺杂下才可以表现出导电特性，而配成溶液的材料导电性因溶剂的不同而不同，并随溶解时间的长短发生变化。

Dependence of flashover voltage on several physical factors, that is applied voltage waveform, predischarge conditioning, geometry shape and length, geometry area, dielectric material, surface treatment, magnetic field effects and multilayer high gradient insulator technology, are expatiated.

文中系统总结了目前高压真空绝缘闪络特性的实验研究成果，具体阐述了几种典型实验模型及研究方法，以及几种重要物理因素，即绝缘材料介电常数、绝缘体几何形状及长度、施加电场波形、绝缘体表面处理、绝缘体几何面积、绝缘体预放电处理、磁场作用、多层高梯度绝缘技术等等，对真空绝缘闪络特性的影响。

Magnetic constant tension control the discharge and recoiler of material.The auto-to-edge hydraulic systems, so that the quality can be ensured.

磁粉恒张力放料、收料，自动液压对边装置系统，使复合的品质具有保障。

An SLon pilot continuous centrifugal concentrator (SLon pilot centrifugal concentrator) was used to study the effects of drum rotation speed and reciprocating velocity of water sprays on the separation performance of the concentrator under the optimum conditions of feed volume flow rate (24.5±0.4) L/min, feed solids content 20% and impacting pressure of water sprays 0.45 MPa, with the high gradient magnetic separation concentrate assaying 52.42% Fe from fine hematite tailings as test material.

摘 要：采用SLon实验型连续式离心机(简称SLon实验型离心机)，以高梯度磁选细粒赤铁矿尾矿得到的磁性产物(52.42% Fe)为试样，在给料体积速率为(24.5±0.4) L/min、给料固体浓度为20%和水束流冲击压力为0.45 MPa的条件下，研究转鼓转速和水束流往复速度对连续离心分离指标的影响。

The inventive MgB2 superconductive material has better performance under magnetic field, with better repeatability.

本发明制备的MgB 2 超导材料磁场下的性能非常优异，且具有很好的重复性。

This effect occurs because the magnetism in the material is generated by innumerable magnetic atoms, like a host of tiny bar magnets, all roughly aligned but randomly fluctuating like compass needles being jiggled about.

这是因为材料的磁性是由无数个磁性原子所产生的，就像一群微小的块状磁铁，它们虽大致排齐但仍不规则，就像罗盘的指针一样不停晃动。

The plasma affects the magnetic field, contributes to the "space weathering" of the planet's surface, and sputters material from the surface to populate the exosphere.

等离子体影响磁场，有助于将&太空风化&的这个星球的表面上，并屡有起伏，从材料的表面，以填充exosphere。

ZA alloy is based on Zn and composed of Al, Cu, Mg added as alloying elements. It is a kindof environmental friendly material that possesses characteristics of high strength, better plasticity,excellent wear resisting property, low friction coefficient and high specific strength, low meltingpoint and no magnetic. ZA alloy has been widely applicated in the fabrication of mechanical partsand models, such as bearing, axle sleeve, pressing plate and turbine. However, the joiningproblem of ZA alloy that hasnt been solved has limited its application in some fields.

ZA合金是以Zn为基，添加了Al、Cu、Mg等合金元素，具有强度高、塑性好、耐磨性优良、摩擦系数低及较高的比强度、低的熔点、无磁性等特点的环保材料，广泛应用于制造轴承、轴瓦、压板、涡轮等机械零件及模具等，但由于连接问题没有解决限制了ZA合金在一些领域的应用，也因此成为ZA合金急亟待解决的问题之一。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。