损耗

Because of no electrode wear in this process the micrometer scale metal wire can be used as the wire electrode in WEMM, and the micrometer or tens micrometer structure can be fabricated.

由于原理上阴极不会损耗，采用微米级直径的电极丝，可加工出微米至数十微米尺度的复杂微结构件。

LV winding Made of aluminium strip. Turns firmlyglued together by means of insulating sheet

三相芯柱由晶粒取向低损耗的双面绝缘的硅钢片叠积而成。

The number of padding on the waste products, reducing business card printing and membership card making products rate of loss

节省了废品的加放数，降低制卡和会员卡制作品损耗率

Finally, some conclusions drawn from the approximation that neglecting the pump re-emission and the losses of laser in other references have been analyzed and compared with the conclusions drawn from our paper.

最后和其他文献中在忽略泵光再发射项和激光损耗的近似条件下得到的结果进行了比较和分析。

An explicit analytical solution of the threshold pump power of the laser has been derived based on rate equations which contain the attenuation coefficients of the pump and laser radiations as well as the major contribution of the re-emission of the upper level atoms to the pump wave by using the analytical solutions. An analytical solution of the minimum fiber length required for the onset of the oscillation is presented. In addition, the analytical solutions describing the variations of the density of the pump radiation and upper laser level population along the fiber length have also been given.

从速率方程组出发，在不忽略光纤损耗系数和保留再发射项主导部分的近似条件下推导出了双包层光纤激光器阈值泵浦功率的显函数解析表达式，得到了光纤激光器产生振荡所需的最小光纤长度的显函数解析解；还给出了泵浦光子数密度和上能级粒子数密度沿光纤方向随光纤长度变化的显函数解析解。

In order to obtain more exact analytical solution to study the output characteristics of double-clad fiber lasers,according to the continuous-wave rate equations of fiber lasers,using typical parameters of double-clad fiber lasers,the contribution of the re-emission effect arising from the interaction between the upper-level atoms and pump light was estimated.Taking into account the predominant part of the re-emission to improve the accuracy of the integration approximated rate equations,the integration of the product of the loss and radiation should be found and explicit analytical expressions for the output of the DCFLs and gradient efficiency of the pump radiation,were deduced,and certain issues of concern were discussed.

为了求得用于研究双包层光纤激光器输出特性的更为精确的解析解，根据稳态速率方程组，针对典型的双包层光纤激光器参量，在估计了上能级粒子再发射项和抽运光产生的影响后，采用保留再发射贡献主导部分的办法以提高可积分近似方程的精确度，明确地提出了要获得光纤激光器输出功率的解析表达式的关键在于求出损耗系数与光场乘积的积分值，简洁地求得了输出功率和抽运光斜线效率的显函数解析表达式，并对其相关问题进行了讨论，以915nm，920nm和975nm的抽运光为例，当输出激光为1090nm时，得出975nm抽运光产生的斜率效率最高并可高达约87%。

Analyses the formation and essence of iron loss on electrical machine,discusses the demagnetization principle of armature reaction of direct current machine,specifies the implication of parallel operation of synchronization generator by quasi-synchronous method,thereby understands relative concepts deeply.

分析了电机中铁心损耗的形成机理及其本质，讨论了直流电机电枢反应的去磁机理，明确了同步发电机准同期并列的含义，从而深刻理解有关基本概念。

Vibration and wave ; damped wheel ; finite element analysis ; structural loss factor

振动与波；阻尼车轮；有限元分析；结构损耗因子

SEBS is also very good at electrical property Its dielectric loss is 1.3×10 at 1KHZ and 2.3×10 at 1MHZ; its volume resistance is 9×10Ω-cm one minute and 2×10Ω-cm two minutes.

SEBS有优良的电性能，其介电损耗在一千赫为1.3×10，一兆赫为2.3×10；体积电阻是一分钟9×10Ω-cm，二分钟2×10Ω-cm。

This new switch controller can prevent its circuit from voltaic arc and impact current,and can be monitored and protected by microcomputer device.

与电磁式有触点开关相比，具有无触点、快速、无火花、低开关损耗、可靠性高、使用寿命长等特点，并且通过微控制器实现对开关的监控和保护。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失