查询词典 direct current

Conventional start methods include direct start and reduced-voltage start cant fit the request for production because they have some localization such as huge current impact, bad adaptive faculty for load, uncontinuous start current, heavy maintaining work.

传统的直接起动方式与降压起动方式因各有其局限性如不能有效减少起动时对电网的大电流冲击，对负载适应能力差、起动电流不连续、维修工作量大等等已越来越不能适应生产发展的要求。

The possibility for preparing nanocrystalline materials by jet-electrodeposition technique is also analyzed. Corresponding the research in the article, a set of unsubmerged single circular jets equipment was designed. In chapter 2, jet-electrodeposition was carried out both under direct current condition and pulse current condition. A series of samples for nanocrystalline nickel coating were prepared under different deposition parameters.

在第二章中，采用喷射电沉积技术分别使用直流和脉冲两种波形的电流进行电沉积，改变电沉积工艺参数制备了一系列的纳米晶镍镀层样品，使用X射线衍射、扫描电镜、透射电镜、维氏硬度计等仪器对镀层微观结构和性能进行了分析和表征，主要考察了在直流喷射电沉积和脉冲喷射电沉积方式下，沉积参数如电流密度、电镀液喷射速度等对镀层微观结构和显微硬度的影响。

The accomplished software-control system of cellular growth system based on direct current-stimulation has characteristics as below:(1)individualise treatment according to user's requirements such as stimulation-current , stimulation-time and stimulation-channel;(2) operate easily and conveniently based on friendly;(3) could enable cursor switch conveniently and quickly among input frames, and disable corresponding choices to avoid mistaken operation;(4)could analyze the gained data and display the waveform of analytical data;(5)provide set up program of the software.

已完成的细胞直流电刺激实验系统软件控制系统具有以下特点：(1)可根据用户需求选择刺激电流的强度、刺激时间和刺激的通道，同时还可对采样频率进行选择；(2)系统软件操作界面友好、美观；(3)参数设置时控制按钮的光标可以方便、快速地在各输入框间切换，并使不能操作的选项失效，减少误操作；(4)对采集到的特征数据可进行数据分析，并对分析数据进行波形显示；(5)提供了该软件的安装程序。

Commutating the machine change into the direct current to the alternate current.

经滤波后，稳压器再把不稳定的直流电压变为稳定的直流电压输出。

Commutating the machine change into the direct current to the alternate current.

经滤波后，稳压器再把不稳定的直流电压变为。。。

While Edison feuded with rival electrical pioneers over whether power should be distributed using a direct current or an alternating current, the issue dividing opinion today is climate change and regulation of greenhouse gases.

当年爱迪生与同为电气先锋的竞争对手在配电应使用直流电还是交流电的问题上争执不下，而目前存在分歧的，是气候变化和温室气体监管问题。

While Edison feuded with rival electrical pioneers overwhetherpower should be distributed using a direct current oranalternating current, the issue dividing opinion todayisclimate change and regulation of greenhouse gases.

当年爱迪生与同为电气先锋的竞争对手在配电应使用直流电还是交流电的问题上争执不下，而目前存在分歧的，是气候变化和温室气体监管问题。

Comparing comprehensive ly the present various current converting circuits, it is proposed an design structure of direct-driven wind power generation current converting systems in megawatt level.

摘 要：在综合比较当前适合直驱型风力发电机组的各种变流电路的基础上[1~ 2]，提出了一种兆瓦级直驱型风力发电变流系统的设计结构，即采用不控整流+升压斩波+SPWM逆变的变流器将电机发出的电能转换为可接入电网的恒频恒压的交流电。

High speed business card printing and membership card-making machine in many parts by the high speeds of the strong effect of the friction generated massive amounts of electrical equipment, static electricity is not so perfect vintage drum wheel system transformation cards and membership card-making machine in high speeds an locations in sometimes as high as 15000V, the current left and right, there is also a 100uA such a powerful voltage and current for business card printing and membership card production process is complex, harm is very serious, especially when a direct threat to the personal safety of the operators.

低速制卡和会员卡制作机洋许众部件城市因低速运转洋的不弱摩擦功用爆发众度的静电，消电不乱装不甚美满的时式卷筒纸轮转制卡和会员卡制作机在低速运转时，机上某些场所的电压有时矮达15000V，电流也有100uA把握，如此不弱不小的电压和电流不对于制卡和会员卡制作历程的感化是错综复杂的，妨害也是很是惨重的，出格是间接恫吓操纵职员的人身不乱好。

A rotating electric machine with two armatures, used to convert alternating current to direct current.

用继电器操作的一种可视信号或音响信号装置，用以指示有关电路的情况。

He tendered his resignation to the Prime Minister.

他向首相递了辞呈。不适合

International economy and trade,Nanking 210044

国际经济与贸易，南京 210044