查询词典 magnetic field

aim: in order to investigate different exposure of magnetic field on the learning memory of mice when the product of magnetic field intensity and magnetic exposure time is equal.

目的：观察磁场强度与磁场暴露时间的乘积相等时，恒定磁场的不同暴露方式对小鼠学习记忆能力影响的差别。

The profiles of the magnetic field intensity and magnetic acceleration in the concerned rooms of typical permanent magnet and superconducting magnet systems are presented, which may be helpful for the selection and design of the magnetic gradient field.

分析了典型永磁体和超导磁体工作空间内的磁场强度和磁加速度的分布规律，可为梯度磁场的选型和设计提供理论依据。

As the rotating magnetic field into which both the rotor cutting electricity conductor when a magnetic line of force, to achieve a rotating magnetic field from the force rotation for the corresponding rotor rotation, the rotor can achieve rotor lead screw for the corresponding movement.

由于旋转磁场对放入其中的通电导体既转子切割磁力线时具有力的作用，从实现了旋转磁场的转动迫使转子作相应的转动，所以转子才可以实现转子带动丝杠作相应的运动。

When a wire loop incises the magnetic force line of the earth magnetic field it will bring about the induction electromotive force an attitude measurement system was designed based on the earth magnetic field orientation sensor .

根据法拉第电磁感应定律，即线圈切割地磁场磁力线产生感应电动势的原理，设计一种基于地磁方位传感器的姿态测量系统。

Magnetic field method is used to analysis the distribution of multi-medium, complex boundary, large difference in dimension, non-linear and forced axial symmetry magnetic field in magnetic fluid seal, the data is derived by unequally spaced net finite difference, and the results of different structure are showed by magnetogram.

利用变步长有限差分法对磁场法描述的磁流体密封中磁介质多、边界复杂、尺寸差别大、非线性的强磁场进行求解，得到了多种形式密封结构磁力线和磁感应强度等值线的分析结果。

According to what graph 2 shows, conductor is still, uniform static magnetic field moves to the left at the speed of , referring to in graph 1 can get , substitute it into Lorentz magnetic force , it is , the negative sign here is not added randomly, it is because the moving direction of magnetic field is opposite to the moving direction of conductor.

如图2所示，导体是静止的，均匀的静态磁场以速度向左边运动，对照图1的，就得，带入洛伦兹磁力中，有，这里的负号不是随意加进去的，而是由于磁场的运动方向与导体的运动方向相反之缘故。

We proposed a set of tabulate shim coils to improve the imaging field homogeneity for permanent magnet. By studying the magnetic spherical harmonics and its Taylor expansion, the proposal of designing lower-order radial coils was derived including x, y, xz, xz~2, x~2-y~2 etc. In addition, a novel composite design was presented for the axial coils. By controlling the shim currents of axial coils, different axial magnetic fields can be obtained. This method simplified the design process of axial coils, and made the axial correcting magnetic field more precise.

本文针对永磁体的组成结构提出了一种平板式匀场线圈设计方法，通过研究成像磁场的球谐函数以及通电圆弧在自由空间产生磁场的泰勒展开级数，导出了x、y、xz、xz~2、x~2-y~2等低阶径向线圈的设计方法，同时针对轴向线圈提出了一种新的混合式设计方案，能够通过控制线圈中的电流组合实现对不同轴向磁场分量的获取，简化了轴向线圈的设计过程，提高了校正磁场的准确性。

The thesis reports the magnetic properties of paramagnetic light rare earth trifluoride NdF_3 under low temperature and the high magnetic field by using quantum theory. The theoretical quantitatively results are compared with the experimental ones, in order to probe into the theory of the microscopic mechanism of magnetization of substance when the temperature is low and applied magnetic field is high.

本论文用量子理论对顺磁材料NdF_3在低温、强磁场作用下的磁特性进行了理论研究，并将其结果与实验进行了比较分析，探索材料在低温、强场的情况下磁化的微观机理。

Magnetic vector potential was regarded as variables to gain solution of excitation magnetic field and armature response magnetic field.

以矢量磁位作为求解变量得到励磁磁场和电枢反应磁场的二维解。

In order to investigate the effects of magnetic field on the liquid-liquid extraction,the extraction process of acetone-water-methyl isobutyl ketone system was studied under magnetic field with different magnetic induction intensities.

为探讨磁场对液-液萃取过程的影响，本研究在不同磁感应强度的磁场中，对丙酮-水-甲基异丁基酮物系的萃取过程进行了研究。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。