查询词典 magnetic material

All living beings and material have faint magnetic field extremely, the magnetic field to wind by electron atomic nucleus produce when rotating.

所有的生物及物质均带有极其微弱的磁场，这种磁场是由电子绕原子核旋转时产生。

The choice for material of iron core, all the structure design and the method of collimation for the magnet were also described. Simulation results of Opera show that when the length of the core is 220 mm, the effective magnetic length is about 302 mm and the maximal magnetic density is around 0.215 T at four interior angles. Corresponding field uniformity is within 0.8% in the area of 133 mm×200 mm.

根据磁铁的设计指标，给出了磁铁设计要求铁芯材料选择方法、整体的结构设计以及如何对磁铁进行定位和准直，并采用Opera程序进行模拟计算，结果表明：当铁芯长度为220 mm时，磁有效长度大约为302 mm；磁感应密度最大的地方在4个内角上，约为0.215 T；在133 mm×200 mm的平面范围内，磁场均匀性优于±0.8%。

The law, which equivalent inductance and effective permeability of magnetic core vary with field current under the excitation of high frequency and large power, is discovered, and this will offer an important reference for the reasonable selection and effective use of material in the design of high frequency large power magnetic components.

在对高频功率磁元件测试中的影响因素进行深入研究的基础上，推导出方波、占空比可调矩形波、单极脉冲波及周期变化的任意波激励下磁元件测试与正弦波激励情况的等效，为解决磁元件在高频任意波激励下的在线检测提供了依据。

Using the observed data obtained from stations all over the world and the related interplanetary and geomagnetic material, we study the response of global ionospheric F〓-layer parameter NmF〓 and hmF〓 to five typical different type geomagnetic disturbance events induced by different interplanetary magnetic cloud, by dividing the global ionosphere into high, middle and low latitude a ccording the variations of magnetic latitude, and adopting the UT/LT (universal time /local time) method.

利用全球电离层台站提供的观测资料及有关行星际、地磁观测资料，根据磁纬变化将全球分成高、中、低纬三个不同的区域，并采用了UT/LT的方法，分析了全球电离层F2层参数NmF2和hmF2对于五次由不同行星际磁云引起的不同类型地磁扰动事件的响应。

Magnetic inductivity: Magnetic permeability; the three-dimensional inductance of a material.

感应率：磁导率；物质的三维感应系数。

In this paper,the magnetic suspension applied characteristics of Rare earth Permanent magnet material in the vibration isolating system are studied,and the method with which spatial flux density and magnetic force is calculated quantitatively is presented.

对稀土永磁材料在隔振系统的磁悬浮应用特性作了研究，给出了永磁系统空间磁密及磁力定量计算的方法，设计了一种新型磁悬浮式隔振装置，在运用试验及应用人工神经网络的方法对其良好悬浮特性和非线性刚度特性进行了综合分析的基础上，引入实验修正系数完善了理论模型，为磁悬浮隔振器的设计提供了理论依

The magnetic field analysis can be carried out with only the extremal magnetic hysteresis loop of the material without the distributed function established through experimental statistics in the traditional Preisach model.

该方法只需要利用永磁材料的极限磁滞回线即可完成分析计算，避免了采用大量实验统计方法确定传统Preisach磁滞模型的分布函数。

The magnetic field analysis can be carried out with oniy the extremal magnetic hysteresis loop of the material without the distributed function established through experimental statistics in the traditional Preisach model.

该方法只需要利用永磁材料的极限磁滞回线即可完成分析计算，避免了采用大量实验统计方法确定传统Preisach磁滞模型的分布函数。

There are some grass seeds recommended for ecological restoration , for example, Kentucky bluegrass, ryegrass, coronilla, festuca arundinacea, sword-bamboo and euonymus fortunei.3Regarding JBA,YQS, and CXL fertilizer as addition agent of the ecological material, magnetic fertilizer as ecological fertilizer, the material take on character such as water holding capacity, fertilizer retaining, prime cluster structure and binding power, which realize the destination of ecological protection of the abrupt rock slope.4Ecological material protection slope techniques, which is suitable for abrupt rock slope in high-cold area, has been formed elementarily.

高寒地区生态护坡的草种应选用具有抗寒、抗贫瘠和适宜粗放管理的冷季型草种，推荐使用的川西高寒地区生态护坡植物种属为：草地早熟禾、黑麦草、小冠花、高羊茅的草种组合，剑竹灌木种，以及小叶扶芳藤藤蔓植物种。(3)适当配比的高分子材料JBA、YQS和生态肥料CXL作为生态基材的添加剂可使基材具有保水、保肥、优质团粒化和粘结性能，从而达到生态护坡的目的。(4)开发了JYC生态护坡基材，初步形成了一套适合川西高寒地区岩质陡边坡生态基材防护的技术方法体系。来源：Ac9BC论文网www.abclunwen.com

In the case of planetary formation, the gravitational interactions between the dust in the disk, the mass in the larger aggregates of material, and the sun itself plus the friction of the material, its thermal properties, and the interaction between the magnetic fields from the star and those of the disk material itself plus countless other factors may be vital in order to understand how planets like our own form from the primordial disk of stardust.

在行星形成的研究中，碟状星尘之间重力的互动、较大聚集物的质量、太阳本身与这些物质间的摩擦、物质间本身的摩擦、物质本身的热力性质、太阳磁力场中这些物质的互动及磁力的影响，加上其他的无数因子都可能是了解地球如何从星尘中诞生的关键。

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。