查询词典 magnetic

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。

To 30 years, research results of geomagnetic storms are embodied in the theory of magnetic storms Chapman Ferraro, they put forward to the magnetic field by the sun streaming compressed particle hypothesis was later confirmed by observation.

到30年代，磁暴研究成果集中体现在查普曼·费拉罗磁暴理论中，他们提出地磁场被太阳粒子流压缩的假说，被后来观测所证实。

The paper introduces the magnetic circuits and their relatives in electric Machinery Course,including the ferromagnetics, law of magnetic circuit , law of electromagnetic induction and the inductance reactance, from the need for the course teaching.

本文从电机学要求出发，介绍磁路及相关内容，它主要包括铁磁物质、磁路定律、电磁感应定律和电感的电抗等问题。

The purpose of this book is to give a general view of magnetic phenomena, focusing it's main interest at the center of the broad field of ferromagnetism, ranging from theory to the engineering applications such as soft and hard magnetic materials and magnetics memories.

本书的目的是给出了磁现象普遍认为，重点在广泛领域的磁性中心，它的主要利益，如软，硬磁材料和磁性记忆从理论到工程应用的广泛领域。

Magnetic properties measurement proved that coated composite powders have fine ferromagnetism and magnetic anisotropy.

磁性能测量表明包覆粉体具有良好的铁磁性能和磁各向异性。

In the experimental research, the levitation force of a HTS above a permanent magnetic guideway was first investigated in the case of zero-field cooling. The hysteresis of the levitation force curve and the interaction between a HTS and the applied magnetic field were explained by the Bean model, and the effect of the measuring precess on the levitation force was further analyzed.

实验研究中，首先研究了零场冷条件下高温超导体在永磁导轨上方的悬浮力特性，借助于Bean模型分析了悬浮力曲线的磁滞特性，阐述了高温超导体与外磁场间的相互作用原理，在此基础上进一步分析了悬浮力测试过程对悬浮力测试结果的影响。

Then, in a transverse magnetic field, the bed expansion behavior, liquid-phase mixing characteristics and dynamic protein adsorption in the MSFB of the magnetic affinity adsorbent (mean size 153 mm, density 1.073 g/ml) made of agarose was studied.

在横向磁场中研究了平均粒径为153 m m 、密度为1.073 g/ml 的琼脂糖磁性粒子的磁稳流化床的膨胀规律、混合特性和蛋白质吸附行为。

This paper calculates the magnetic field distribution of short coil, The electronic in magnetic field movement under the near axis condition is discussed.

本文计算了短线圈内的磁场分布，讨论了近轴条件下电子在磁场中的运动，根据光学焦距的定义，推导出了磁透镜的焦距公式。

The magnetic shunt structure prevents magnetic field from the write coil from reaching and affecting the read head.

该磁分路结构防止来自写线圈的磁场到达并影响读头。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。