电磁

The USM is a kind of new electrical motor which develops in recent 20 years, it broke through the traditional concept of electrical motor. It didn"t have the electromagnetism winding and the magnetic circuit, and it didn"t uses the mutually electromagnetism to transform the energy, moreover, the volume of electrical motor is small, the weight is light, the transfer efficiency is high. For it was so small, so light, and so thin, it have begun to use on automobile. But the usage of superconductivity electrical motor is still in the experimental stage at present. The main reason is that the super conductivity material has not realized the high temperature, but with the development of technical, the possibly uses of superconductivity electrical motor in the big horsepower like automobile generator and on actuation electrical motor causes the electrical machinery to be smaller in volume, lighter in weight, and higher in efficiency.

超声波电机是近二十年来发展起来的一种新型电机，它突破了传统电机的概念，没有电磁绕组和磁路，不用电磁相互作用来转换能量，体积小、重量轻、转换效率高，很小、很轻、很薄，在汽车上已经开始使用；超导电机的使用目前还处在实验阶段，这主要的原因是超导材料还没有实现高温化，但是，随着技术的发展，超导电机可能使用在汽车的起动机和驱动电机这些大马力上，使原有的电机体积更小，重量更轻，效率更高。

An approach to visualizing the 3D electromagnetic environment is presented by the multi layer of Marching Tetrahedra isosurfaces.

电磁环境三维可视化是目前虚拟战场环境中亟待解决的问题之一，提出多层等值面的方法来表现三维电磁环境。

An approach to visualizing the 3D electromagnetic environment is presented by the multilayer of Marching Tetrahedra isosurfaces.

电磁环境三维可视化是目前虚拟战场环境中亟待解决的问题之一，提出多层等值面的方法来表现三维电磁环境。

The purpose of the research is to make the north-seeking system much more accurate and raise its speed at the same time. This paper analyzes the mechanical and electronic structure of the magnetic north-seeking system, introduces its working principle.

并在研究磁轴承简化物理模型和分析电磁轴承工作原理的基础上，推导了电磁轴承的电磁力计算公式，得出磁轴承的单自由度传递函数，分析了转子低速运行时的特性得出了系统传递函数。

Xvii New or remanufactured solenoids must be used on all starters.

所有的起动机必须用新的电磁开关或翻新的电磁开关。

NUMATICS solenoid valves have a very long lifetime comparing with others, due to the unique stainless steel "spool and sleeve"-structure with no o-ring sealings!

由于其独特的不锈钢阀芯阀套结构，而不用任何 O 型密封圈， NUMATICS 的电磁阀与其它的电磁阀相比具有非凡的使用寿命。

Because the particularity of ABS, the brake pressure could decrease in very fast ratio. So the retuning pump must work at the same time during pressure decrease. This is why ABS valve is different from other normal valves.

由于ABS的特殊性，在减压过程中要求制动系统压力下降速率很快，因此减压时必须开启回油泵，这也是ABS电磁阀区别于其它电磁阀的主要原因和特点。

Due to the use of permanent magnet in structure,a bistable electromagnetic radio fre- quency micro-electro-mechanical systemsswitch based on UV-LIGA technology re- quires no energy to remain at"on"or"off"state.

一种基于UV-LIGA加工技术的双稳态电磁型RF MEMS开关，由于其结构使用了永磁体单元而使得开关在维持&开&或&关&态时不需要功耗，从而实现低功耗的电磁驱动。

In order to make the telecommunication satellite operate well in the electromagnetic jamming and complex electromagnetic environment, a novel space-borne antenna multi-jamming direction finding and nulling method is presented.

为了保证通信卫星在人为电磁干扰及复杂电磁环境下的正常工作，给出了一种用于星载赋形天线的频域多干扰目标测向及调零方法。

The low-frequency rectangular wave excitation and intelligentized transformation technology are adopted to ensure the stable zero and precision of 0.5 grade and repeatability of 0.25%.

FFM62智能电磁流量计是基于法拉利电磁感应原理和权重函数磁场分布技术而研制成功的一种稳定性好、精度高的智能型电磁流量计。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐