针对结构动力失稳的判定问题，提出了一种适用于杆系结构动力稳定分析的应力变化率法。
Considering the judgment of dynamic instability of truss structures, a stress rate method for dynamic instability analysis of truss structures was proposed.
利用单元局部频率变化率法和单元模态应变能比法，对连续梁桥进行了损伤诊断的数值模拟研究。
Based on element local frequency change ratio method and element modal strain energy ratio method, numerical study is carried on to detect the damage of the bridge.
本文分析了电位器接触电阻变化率(CRV)测量的难点，提出了一种行之有效的方法——准包络测量法。
This paper analyses the difficulty in potentiometers' Contact Resistance Variation (CRV) test, and introduces an effective test method-Qarsi-Envelope test method (QETM).
累积倾角交汇图法可以提高对倾角细微变化的分辨率，但在取样深度不均匀时容易产生假象；
Although the cumulative dip plot method can improve resolution of fine dip variation, it will induce pseudomorph as sampling is not even in depth.
本文简要介绍了压电晶体传感器的基本原理，以及基于质量、粘度、电导率变化的溶液分析法。
The fundamental principle of the piezoelectric sensors and the analytical methods based on mass, viscosity, electric conductivity in solution are briefly introduced.
该文在现有单站无源定位方法的基础上，介绍了相位差变化率定位法。
In this paper, the single observer-passive location method using phase difference change rate is introduced based on existing methods.
计算历史时期海岸线变化率常用的数学方法有端点法、平均速率法、线性回归法和折剪法。
The commonly used methods for calculating the shoreline change rate based on the coastal evolution history include end point method, average the method, linear regression method and jackknife method.
通过算例表明，应用该法进行口模优化设计可以减小压力降和口模出口速率变化率。
An example shows that using this method can obtain a uniform velocity profile across the die and minimize pressure drop.
基于这一点，本文考虑了型钢混凝土构件配钢率变化这一因素，采用时程分析法对型钢混凝土框架结构进行了地震响应分析。论文的主要工作有以下部分。
Based on the reason, this paper USES time-history method to deal with the dynamic seismic analysis of SRC frame in consideration of the varying of shaped steel ratio.
提出了一种新型的烟雾报警装置，并详细介绍了装置的硬件电路原理和所采用的具有动态调整门限的幅值测量法和变化率测量法。
This paper presents a new type of smoke alarm device based on measuring methods of amplitude and rate, and describes its hardware circuit principle.
本文选用多普勒频率变化率定位法作为海上无源探测系统的定位方法。
The paper selects the Doppler changing rate method in naval passive location system.
无源定位技术有着广阔的应用前景，文中在现有单站无源定位方法的基础上，介绍了相位差变化率定位法。
Technology of passive location has broad prospects for application. The single observer-passive location method of phase difference rate of change is introduced based on existing methods.
以反应精馏方式进行时，乙醇转化率、乙酸乙酯收率分别为94.09%和60.45%，明显高于普通蒸馏法，而乙醇转化为乙酸乙酯的选择性变化不大。
The results showed that the conversion rate of ethanol was 94.09%, the yield of ethyl acetate was 60.45%, obviously higher than conventional synthesis method, while the selectivity varied slightly.
开发了一种利用计算机图形绘制多口井测井数据的应用程序，实现了用数学上的正态概率分布法来反映视地层水电阻率的变化规律，并根据其变化规律判别储层的流体性质，效果良好。
The variation rules of apparent formation water resistivity was reflected by using normal probability distribution, according to its changing rules, the fluid property was judged with good result.
开发了一种利用计算机图形绘制多口井测井数据的应用程序，实现了用数学上的正态概率分布法来反映视地层水电阻率的变化规律，并根据其变化规律判别储层的流体性质，效果良好。
The variation rules of apparent formation water resistivity was reflected by using normal probability distribution, according to its changing rules, the fluid property was judged with good result.
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