查询词典 direct current

The rat model of schizophrenia was prepared by MAP injection i.p. and the nucleus lesioned by direct current to observe the changes in stereotypic behavior of MAP + lesion rats. Expressions of DRD2 in the prefrontal lobe and temporal lobe and limbic system and brain stem were then detected by in situ hybridization.

经腹腔注射MAP制备精神分裂症模型，采用立体定向-直流电毁损伏隔核，观察大鼠刻板行为变化；并采用原位杂交法观察额叶、颞叶、边缘区及脑干部位的D2受体表达。

The main purpose is to direct current superimposed on the exchange of a specified weight limit value.

主要用途是将叠加在直流电流上的交流分量限定在某一规定值。

This is useful for battery charging, but - you'll notice how "lumpy" the Direct Current looks on the scope.

这是有益的电池充电，而且-你会发现如何"块状"直流期待的范围。

A rectifier used in high-voltage direct current power transmission systems and industrial processing between about 1909 to 1975 is a mercury arc rectifier or mercury arc valve .

汞弧为整流高压直流电源传输系统中的使用和工业加工 1909年到 1975年之间是汞弧整流器或汞弧阀。

The microstructure and characteristics of them were tested by X-ray diffraction, scanning electron microcopy, AC impedance, and four-probe direct current methods.

利用扫描电子显微镜、X射线衍射分析、交流阻抗、直流四探针法等技术，对材料的结构及性能进行表征。

In the measure amplification circuit, direct-current or low frequency signal come from a common sensor , conveying in only rhyme fashion way after amplification, In typical situation, serviceable signal maximum amplitude probable only have a certain number or amount millivolt, but common mode noise suppression may be up to several volt, as a result it is significant to the factor of the amplification input drift and noise etc for total precision, the amplification in itself common mode restraints features is also equally binding problem.

在测量用的放大电路中，一般传感器送来的直流或低频信号，经放大后用单端方式传输，在典型情况下，有用信号的最大幅度可能仅有若干毫伏，而共模噪音可能高到几伏，故放大器输入漂移和噪声等因素对于总的精度至关重要，放大器本身的共模抑制特性也是同等重要的问题。

To submit contents based on CPLD/FPGA 's PWM because electric circuit has structure simple, and realize that is apt to realize good, and in detail system analyzed work principle of module each, and offered simulation waveform, and direct current motor proved his accuracy through inside application while the modificatory thing is systematic fast.

本文提出的基于CPLD/FPGA 的PWM实现电路具有结构简单、容易实现等优点，并详细分析了系统各模块的工作原理，给出了仿真波形，通过在直流电机调速系统中的应用证明了其正确性。

Influence of soil structure on direct current flowing into neutral point of power transformerg.

土壤结构对流入变压器中性点直流电流的影响。

The elevator model was made by using devices such as limit switch,nixie tube,direct current motor.

采用限位开关、按钮、数码管、直流电机等器件实际制作。

Combine to emphasize the software design that introduced thought and design methods of the direct current servo control system, it included the design of the main procedure, give the design that settle the procedure, modify the design of the procedure and start the design of the procedure to break off the design of the procedure with the T0, passing to the fixed amount with comparison and PID that feedback measures control procedure, output the certain electric voltage, realize system opposite angles degree of accurate follow.

本文介绍了以 MCS—51单片机为控制核心的直流伺服控制系统的工作原理，并着重介绍了直流伺服控制系统的软件设计的思想及设计方法，它包括了主程序的设计、给定程序的设计、修改程序的设计、启动程序的设计和T0中断程序的设计，通过给定量和反馈量的比较及PID控制程序，输出一定的电压，来实现系统对角度的准确跟踪。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐