The precision of an analytical procedure is usually expressed as the standard deviation or relative standard deviation (coefficient of variation) of a series of measurements.
分析规程的精密度通常以一系列测量数值的标准差或相对标准差(变异系数)来表示。
Voltage Reference in the design, how to achieve high-precision, low temperature coefficient is a major difficulty.
在基准电压源的设计中，如何实现高精度、低温度系数是一大难点。
Coefficient of variation of the precision experiments met requirements for analysis of trace amounts of multiple pesticides.
精密度试验的变异系数满足农药多残留痕量分析的要求。
The correction coefficient needs to be adopted to calculate the determinated value of work curve, it simplifies the operation, reduces error and enhances the accuracy and precision.
采用大肚移液管，将标准溶液配制成整数级别的贮备液、中间液、使用液时，利用工作曲线计算测定值需要引入校正系数，利用该方法可简化操作，减少误差提高实验准确度、精密度。
SB2014 Heavy Current Precision low Resistor is made of delicate materials, which has low temperature coefficient, high resistance rate, and high stability.
SB2014型精密大电流低阻箱采用温度系数低、阻率大、定性高的材料精制而成。
The spectrum effect on attenuation coefficient is less than 5%. The material densities can be reconstructed with such precision.
在图像重建中利用上述的线吸收系数能够反演出精度达5%的材料密度。
The system also could decrease the effect of scattering light on absorption coefficient measurement by partly plating highly reflective membrane, so that we can improve the precision of the system.
对光管进行部分镀高反膜尽可能消除散射光对光吸收系数测量的影响，从而提高了系统的精度。
With the error network parameters, the real network's input reflecting coefficient is revised and the measurement precision of measuring line system is improved.
利用误差网络参数，对被测网络的输入反射系数进行误差的自动校正，提高了测量线测试系统的测量精度。
The paper adopted a relative precision method of probability analysis of slope stability-design point method, and compared to traditional safety coefficient assessment.
本文采用目前相对精确的验算点法对某边进行稳定概率分析，并与安全系数作比较。
D-optimal test scheme was presented for calibrating second-order coefficient K2 of PIGA (Pendulous Integrating Gyro Accelerometer) error model on a precision centrifuge with counter-rotating platform.
提出了一种在带有反转平台的精密离心机上标定陀螺加速度计误差模型二次项系数K 2的D -最优试验方案。
This paper analyzes the factors affecting the controlling precision of sand compactibility system and sets up the dynamic model of regression coefficient between sand compactibility and water content.
分析了影响型砂紧实率控制精度的因素，建立了型砂紧实率-水分回归系数的动态模型。
Coefficient determination, absolute bias, relative absolute bias, root mean square error and relative root mean square error were employed to evaluate the precision of different model systems.
采用确定系数、绝对误差、相对绝对误差、均方根误差、相对均方根误差等模型评价指标对不同模型系统的精度进行比较分析。
This formula was used by graphic method. But the precision of the graphic method was poor and computer cannot be used to calculating the resistance coefficient.
目前这个公式的使用方法是采用图解法，但是图解法精度差而且不能用计算机进行计算。
Part two: This paper analyzed the degree of predicting precision affected by decomposing scale coefficient of wavelet cycle model and various kinds of reservoir inflow runoff series.
第二部分，本文分析了小波周期模型的分解尺度数和各种不同入库径流序列对模型预测精度的影响程度。
With the same size compared to other types of bearings, such bearings friction coefficient is small, extreme high speed, high precision, when a user selection of the preferred bearing type.
与尺寸相同的其它类型轴承相比，该类轴承摩擦系数小，极限转速高，精度高，是用户选型时首选的轴承类型。
The time-varying and incommutable character of the coefficient matrix of periodically time-varying linear systems are the bottleneck of the design for high precision direct integration methods.
周期时变线性系统系数矩阵的时变性与不可交换性是其精细积分算法设计中的瓶颈。
The entropy method is adopted to obtain the weight coefficient of the combination model, and analysis of the example result shows that this new model significantly improves the forecasting precision.
并采用熵值法对组合模型的权系数进行求解，实证分析表明该模型使预测精度得到了明显提高，具有良好的预测效果。
It is shown that the 3-d calculation by FEM with the equivalent permeability coefficient is feasible and the calculating precision can meet the requirements of project.
研究结果表明，采用等效渗透系数进行三维有限元计算是可行的，且计算精度可以满足工程要求。
Low temperature coefficient, high precision, low noise, and good high frequency performance.
温度系数小、精度高、噪声低、高频性能好。
The measuring of self-inductance coefficient by means of direct current bridge method has reduced the difficult and improved the precision of measuring.
传统测量电感的自感系数是用交流电桥，它存在平衡点较难找，并且在空间杂散信号干扰下很容易产生误差。
Based on the basic principle of bandgap reference, design a high precision, high power supply rejection ratio (PSRR) and low temperature coefficient (TC) bandgap voltage reference.
基于带隙基准的基本原理，设计了一种高精度、高电源抑制比(PSRR)、低温度系数(TC)的带隙基准电压源。
Results show that the system has high precision in both static and dynamic, low volatility in coefficient and excellent stability in performance.
实验结果表明静态温度和动态温度控制精确，波动系数小，系统稳定。
Stable, strong anti-interference, the ripple coefficient of small, high-precision technology, good protection .
运行稳定、抗干扰性强、纹波系数小、技术精度高，具备完善的保护功能。
The rapidity of convergence was improved with introducing dynamic step size and inertial coefficient, and the prediction precision was improved with introducing modified prediction model.
采用“修正式”预报模式提高了铁水含硅量预报的命中率。
This paper analyzes the factors affecting the controlling precision of sand compactibility system and sets up the dynamic model of regression coefficient between sand compactibility and water content.
该系统能够用于在线检测型砂的紧实率、湿压强度和砂温等性能 ，并且能够根据检测结果通过控制补加水量将型砂紧实率控制在设定的工艺范围之内。
This paper analyzes the factors affecting the controlling precision of sand compactibility system and sets up the dynamic model of regression coefficient between sand compactibility and water content.
该系统能够用于在线检测型砂的紧实率、湿压强度和砂温等性能 ，并且能够根据检测结果通过控制补加水量将型砂紧实率控制在设定的工艺范围之内。
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