direct current的例句大全

Permanent magnetism direct current generator without brush drives the reflector with ten surfaces to line scanning, and the stepper motor drives single reflector to achieve television video field scanning.

永磁无刷直流电机驱动等10面体旋转反射镜实现电视图像的行扫描，步进电机驱动单面反射镜实现电视图像的场扫描。

Measurements are made on the temperature dependence of threshold current density in DC-PBH 1.3 μ m InGaAsP/ InP laser under direct current.

测量了1.3μm InGaAsp/InP DC-PBH激光器在直流工作条件下，阀值电流密度随温度的变化。

Excitation regulator of direct current drive system on targe power shovel

大型挖掘机直流传动系统激磁调节器

Time constant computing method of direct current motor transmision system

直流电动机传动系统时间常数计算方法

Full Digital Direct Current Thyristor Speed Control Equipment for Planer

龙门刨床全数字直流调速系统

A basic construction and operation principle of thyristor trigger circuit which consists of integrated operational amplifier is described and the application of the thyristor trigger circuit in speed control of direct current low power motor is introduced.

叙述了由运算放大器组成的晶闸管触发电路的基本结构、工作原理，并介绍了该触发电路在小功率晶闸管直流调速系统中的应用。

Low direct current drive voltage and low power consumption, being matched with integration drive circuit;

直流驱动电压低，能耗少，可与集成驱动电路相匹配；

The change rule of electrical resistivity with the increase of temperatures of tin-zinc ( Sn-Zn) alloys with different compositions were investigated using the direct current four-probe technique at constant pressure.

采用直流四电极法研究了常压下Sn-Zn合金系的电阻率随温度连续升温的变化规律。

Electrochemical Reactions in Tissue Culture Medium under the Direct Current Stimulation

直流电刺激下组织培养液的电化学反应

Effect of Direct Current Electric Field on the Microstructure of Al-10% Si Hypoeutectic Alloy

直流电场对A1-10%Si亚共晶合金凝固组织的影响

Thermoelectric generator ( TEG) which is driven by natural gas can supply direct current to CP system of gas transmission pipeline in remote and no power supply district.

TEG即热电发生器，以天然气为燃料，可满足边远无电地区输气管道阴极保护直流用电需要。

Research And Development of A Direct Current Differential Logarithmic Amplifier With Two-terminal Inputs

一种双端输入的直流差动对数放大器的研制

A simple method to simulate direct current drive device adjustment

模拟量直流传动装置（BURTON）调试简法

How Improve The Influence of Direct Current Drive on The LCD?

如何改善直流驱动对液晶显示器的影响？

If IR thermal camera is coupled by direct current and its circuit gains and background voltage are stable, it can be used to measure IR radiance after calibration.

如果热像仪采用直流耦合，电路增益和背景电平稳定，则通过定标后可以进行红外辐射测量。

Direct current power modulation of HVDC and the reactance modulation of TCSC can affect the active power transfered between areas and, further, affect the stability of the power system.

HVDC直流功率调制和TCSC电抗调节都能改变区域间传输的有功功率，从而影响系统的暂态稳定性。

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。

The concentrations of 17 elements in rice, corn, wheat, wheat bran, soybean and wheat flour were determined by three electrode direct current plasma atomic emission spectrometry.

用三电极直流等离子体原子发射光谱仪对大米、玉米、黄豆、小麦以及面粉和麸皮中的17种元素进行了测定。

Effect of comprehensive rehabilitation therapy including electro-acupuncture intermittent direct current therapy and exercise therapy on functional deficit after peripheral nerve injury

电针、直流点送、运动疗法综合治疗对周围神经损伤后功能恢复的影响

Common DC bus is mainly composed of rectification and inverter unit, with which three-phase alternating current becoming into fixed power direct current, then direct current is again converted into frequency and voltage adjustable alternating current by inverter to control motor speed.

公共直流母线技术主要由整流单元和逆变单元组成，三相交流电经过整流单元以后，变成一定功率的直流电，再经过逆变单元变成频率和电压可调的交流电源，用来控制交流电机的速度。