电磁的

Chapter 3. Make use of the unified field equation not only deduce the motional equation for matter, but also still have get the spacetime metric of the unified field and spherically symmetry electromagnetic metric.

第三章 利用统一场方程不仅导出物质的运动方程，而且还得到了统一场的时空度规和球对称电磁度规。

The paper presents the technical status mine explosion-proof electrical apparatus of mine flame-proof type vacuum feed switch,mine flame-proof type with intrinsically safe vacuum electromagnetic stater,mine flame-proof type high voltage vacuum distribution device and mine flame-proof type movable transfermer substation,And it analyzes from parameters,electrical system and the structure.

简要介绍了矿用隔爆型真空馈电开关、矿用隔爆兼本质安全型真空电磁起动器、矿用隔爆型高压真空配电装置、矿用隔爆型移动变电站等主要煤矿防爆电器的技术现状，并从参数、电气系统及结构等方面进行了初步的分析。

Founded in 1993, has a wealth of experience in scientific research, technology, management and marketing professionals, in particular the company has independent intellectual property rights of a number of patented technologies - automatic regular-rotation table (ZL00225067.5), electric insulating steam Dining table (ZL00225796.3), with automatic rotation Induction Cooker table (ZL200320114117.X),(ZL200420069038.6), has taken the lead through the ISO9001: 2000 international quality system certification, and won the "national table top 10 brands" and other awards and A number of awards.

公司创立于1993年，拥有一批经验丰富的科研、技术、管理和销售专业人才，特别是公司拥有独立自主知识产权的多项专利技术—自动定时多功能旋转餐桌（ZL00225067.5）、电热蒸汽保温餐桌（ZL00225796.3）、配有电磁炉全自动旋转餐桌（ZL200320114117.X）、（ZL200420069038.6），已率先通过了ISO9001：2000国际质量体系认证，并荣获"全国餐桌十佳品牌"等殊荣和多项大奖。

With more isthe piston - spring type energy storer, this energy storer is locatedbetween the solenoid valve and the dump pump, comes by the wheelcylinder 液压油 to enter the energy storer, then the compressionspring causes the energy storer hydraulic pressure cavity volume tochange in a big way, to temporarily stores up the brake fluid.

用得较多的为活塞-弹簧式储能器，该储能器位于电磁阀与回油泵之间，由轮缸来的液压油进入储能器，进而压缩弹簧使储能器液压腔容积变大，以暂时储存制动液。

When only using this mode, the disadvantage lies in that in the case of incomplete shielding, a supersensitive electromagnetic receiver can still acquire information

单一使用这种模式的缺点是，如果屏蔽不能彻底，高灵敏度的电磁接收设备还是可以获取信息。

Along with the settlement of protective rolay in the switchyard of substation,its sensitivity and weakness to electromagentic interference are more obvious.

随着继电保护下到变电站的开关场地中，这些设备对电磁干扰具有更明显的敏感性和脆弱性。

A micro-vibration testing platform with symmetrically placed electromagnetic actuators for the control of micro-vibration is presented.

通过对称布置的电磁作动器实现微振动平台的微振动控制。

Thus the results of numerical simulation were in agreement with that of industrial teat to a certain extent.

电磁制动数值模拟的结果与现场试验结果有一定的吻合性。

Electromagnetic field theory,lumped-element circuit theoy and distributed circuit theory,based on maxwell′s equations,kirchhoff's laws,telegrapher's equation respectively,are the main methods to analyze electromagnetic problems.

0引言电磁场问题的"场"理论是基于Maxwell方程组的理论分析途径，这种分析方法归结为电磁场边值问题地求解，通常比较复杂而繁琐，原则上可以用来处理几乎所有得宏观电磁场问题。

The results from explosion earthquake and telluric electromagnetic sounding are consistent with the structural features of the crust manifested by the geophysical field.

基于重力场异常、航磁异常、地壳厚度变化、地震剖面、大地电磁测深、遥感、大地构造研究和近年来的地震记录等资料，首先充分了解川滇地区的地壳结构和现代地壳活动特点。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。