直流

C. testing method: Use cocurrent voltage-stabilized source.

c。试验方法：使用直流稳压电源。

A precise moving FEM analysis model is presented, in which the cogging effect and commutation are included in performance calculation.

建立了合理的永磁直流电动机动态有限元分析模型，该模型中考虑了齿槽效应和绕组换向对电机性能的影响。

Two motors were analyzed and optimized with the above method and the results show that the cogging torque can be reduced notably.

本文对每极槽数为整数和分数的两台无刷直流电动机分别进行了解析分析和优化，结果表明，该文的优化方法可显著削弱齿槽转矩。

By using Fourier series,the relation between the value and harmonic of cogging force and the number of slot and pole was acquired.

对微型短初级永磁直线无刷直流电动机进行了优化设计研究，在电机槽数不变的情况下，设计不同的电机绕组分布方式和初级长度内对应永磁体的数目，并进行了齿槽力的分析和研究。

To experiment on 66mm, 75mm returned flow hydrocyclone and 70mm uniflow hydrocyclone (cone-shaped, columniform) in water-sand intermixture, then each capacity, separation performance and correlative parameter's change rules are obtained and compared. Building up overflow system in series of 66mm and 75mm hydrocyclone, separating property and partition curve of the system through experiment are gained.

分别对66mm、75mm返流式水力旋流器和70mm直流式水力旋流器四种水力旋流器进行砂水实验研究，得出各自的生产能力、分离性能及相关参数的变化规律，并进行比较；组成返流式水力旋流器溢流串联系统，进行性能测试，得出系统的分离性能和级效率曲线。

This paper is about controlling DC motors complexly based on MCU.

在这里，本课题将研究采用单片机对直流电动机进行复杂控制。

In the third chapter, we present a theoretical description and numerical simulation for the effective linear and nonlinear optical properties of compositionally graded films consisting of nonlinear metal particles and linear dielectric particles.

对比理论和模拟结果，两者在直流情况下吻合的相当好，而在交流情况下，两者也能很好的定性符合的，考虑差异主要来源于采用了退耦近似和局域电场取模近似的缘故。

As the main conversional device of mechanical energy to electrical energy, the motor has mainly three types, such as,the DC motor, the synchronous motor, the asynchronous motor .

电动机作为机电能量转换的主要装置，其主要类型有直流电动机、异步电动机和同步电动机三种。

The paper present a kind of brushless DC torque motor with coreless armature, which haven t static friction torque , inferred method of calculating current, torque, EMF, and etc.

提出了一种电枢上无铁心的无刷直流力矩电机，该电机无静摩擦力矩。

Therefore, it is held that the direct electric field can improve the development result of low-permeability, high water cut and depletive reservoirs. But it has little effect on matrix mineral of rock.

研究认为外加直流电场对提高低渗油田注水开发效果具有重要意义。

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援，我们正徵召国家所有各种的力量：我们的外交及发展，我们的经济力量与道德劝说，所以你们与其他军人不须要孤独地负起国家安全的责任。