查询词典 differential method

In this paper, the relation between differential driven ratio accuracy and the common normal length error of cylindrical bevel wheel has been found by experimental method, which provides a efficient way for cylindrical bevel wheel manufacturer to control the common normal length error of the wheel.

通过实验研究，寻找出差动传动比的精度与斜齿圆柱齿轮的公法线长度误差的关系，从而为斜齿圆柱齿轮的加工提供一个可以控制斜齿圆柱齿轮公发线长度误差的有效方法

The article introduces two arithmetic of partial differential,and analyses the method of using compare the current vector of coupler breaker,and provides sampling arithmetic and vector arithmetic.

母线微机保护装置已发展的比较成熟，装置通用的选择故障母线的方法是利用总差动和分差动相配合；文中介绍了利用分差动选择故障母线时的两种算法，分析了利用母联电流方向比较元件选择故障母线的方法，并从瞬时值方面和向量值方面提供了两种算法。

After analyzing the reasons and characteristics of communication data error of current differential protection relay, a communication error-correcting method is given to accelerate tripping of relay.

分析了通信过程中数据出错的原因和特点，然后给出了根据汉明码纠错原理推出的纵差保护数据通信的纠错方法，借以提高保护的动作速度。

Based on Mononobe-Okabe＇s postulation and the reasonable consideration for the restricted pore water, a first-order differential equation of the dynamic active earth pressure on rigid retaining walls with submerged backfills in the traaslational movement mode under earthquake loads is set up by using the method of level-layer analysis.

基于Mononobe-Okabe假定，在合理考虑土体孔隙中受限水含量的基础上，利用水平层分析法推导了填土中有地下水时刚性挡土墙平移模式下的动主动土压力强度的一阶微分方程，并求得非线性分布解：探讨了地下水位、受限水含量、填土的内摩擦角、墙背的摩擦角和地震系数等参数对土压力强度分布、合力作用点高度以及倾覆力矩的影响。

Through modified method of DDRT-PCR, 135 differential expressed fragments were obtained from cDNA of different Arabidopsis ecotypes before and after inoculation.

利用改良的DDRT-PCR差异显示技术，从接种葱链格孢的拟南芥cDNA中分离得到了135条差异表达片段。

A theoretical analysis of local damage in a thin ductile tube hit by a flat-nosed missile laterally is developed to predict local failure due to plugging by the beam-on-foundation model. The effect of internal press was considered, and differential equations was obtained which can predict the ballistic speed of the missile which impact the tube filled with water. It can be solved by Runge-Kutta method.

采用地基梁模型对平头弹体侧向冲击钢管的冲塞型破坏模式进行了理论分析，考虑了充压情形下内压的影响，导出了钢管在冲击过程中的运动方程，可以用龙格—库塔法进行数值求解来确定弹体冲击充液压力管道的弹道极限速度。

There is still no effective method on effectively curing this disease. In this paper, egg-yolk antibody against WSSV was prepared and its effectiveness on preventing and curing this disease was tested. In order to get adequate WSSV antigen, the differential-speed centrifugation and the sucrose gradient ultracentrifugation were used to isolate and purify WSSV from the foregut and gill tissues of shrimps affected with WSSV.

为了获得足量的WSSV抗原，本文以感染WSSV的对虾前肠和鳃等组织为材料，分别利用差速离心法和蔗糖密度梯度离心法进行了WSSV的分离纯化，结果表明：利用差速离心法虽然能够使所分离的WSSV的完好率达70﹪左右，但其中杂质较多，病毒粒子的收获量较少；利用蔗糖密度梯度离心法提取WSSV，虽然其完好率稍低于差速离心法，但也可以达到60%以上，并且，所得到的WSSV的量要大大高于差速离心法，适合于WSSV的大量分离。

The torque measurement is one of important contents of transmission line. The non-Contract torque measurement method with high precision and high stability is one of hotpots that research machine quantity measurement in various countries today. Therefore, research on a non-contract torque sensor based on screw-type differential transformer is put forward.

扭矩测量是传动线路中的重要内容之一，高精度、高稳定性的非接触式扭矩测量方法是当今各国机械量测量研究的热点之一，为此，提出了一种基于螺管形差动变压器的非接触式扭矩传感器的研究。

For feature extraction, this dissertation studies Barnard algorithm for Edge Point extraction and SUSAN algorithm for Corner extraction, Afterward, I put forward a method to extract inflexions, straight lines and curves based on Freeman Differential Code. Thus the use of Freeman Code can be extended and there will be more approaches to finish stereo correspondence.

在特征提取部分，本文对传统的Barnard边缘点提取、新近的SUSAN角点检测等技术做了详细的分析和研究，并在此基础上提出了基于Freeman差分码的多特征提取方法，包括拐点、直线及曲线，而且提取的直线利用多直线段分解法进行拟合，提取的曲线利用B样条技术进行拟合，最终形成有意义的轮廓。

According to the principle of electrolysis and by using the method of differential electric potential, the apparatus can solve the prob- lem of each layer delaminating from each other automatically.

该仪器根据电解剥离原理，采用微分电位法，解决了各层界面自动分层难题。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。