误差系数

Experimental results indicate that the variance coefficient was not bigger than 4.98% in the range of 50×10^(-6)~10000×10^(-6); the coefficient was not bigger than 0.44% and the absolute error was less than 0.35×10^(-6) in the range of 2.5×10^(-6)~10×10^(-6).

该分析方法在50×10^(-6)~10000×10^(-6)范围内，变异系数不大于0.44%；在2.5×10^(-6)~10×10^(-6)范围内，变异系数不大于4.98%，绝对误差小于0.35×10^(-6)。

Taking a carborundum brick of which the thermal conduction coefficient was given as specimen, the measuring error of it is less than 8%.

通过测量已知导热系数的碳化硅砖的导热系数，得其误差小于8%；通过对同一试样的两个小试样进行平行测量，得其相对偏差小于3%。

The results showed that the correlation coefficient of cross validation, the RMSECV, and the correlation coefficient of external validation are 0.904, 0.988%, and 0.987, respectively.

结果表明，用NIRS 法得到的预测值与用凯氏定氮法得到的测定值间的交叉验证决定系数R2cv为0.904，交叉检验标准误差RMSECV为0.988，外部验证的相关系数为0.987。

The error of dielectric loss angle calculated by this way is reduced more than 18% than the former one.

仿真结果表明，该方法计算介质损耗角时的误差，较单独使用相关系数法时减少18%以上，克服了谐波及直流分量的影响，提高了相关系数法测量介质损耗角的精度。

Second,a new estimator called generalized rootpower estimator of regression coefficients in growth curve model is obtained.For the newestimator,its superiority over the LS estimator and the root power estimator,and its admissibilityare proved.Two methods,two kinds of arithmetic of choosing the generalized root powerparameters are introduced.A demonstrative practical example is provided.

对增长曲线模型中的回归系数矩阵提出了一种新的估计——广义根方估计，并证明了通过广义根方偏参数的适当选取可使得该估计在均方误差和均方误差矩阵的意义下优于已有的最小二乘估计估计和根方估计；及证明了广义根方估计是可容许估计；还给出了选取广义根方偏参数的两种方法、算法和应用实例。

The investigation results indicated that the relative tolerances of resultant vector angle is less than 10％ and that of thrust coefficient is less than 2％ while nozzle vectoring, and the infrared radiation distribution of computation is consistent with that of engine test roughly as well as to meet the demands of engineering design for AVEN basically.

结果表明，在矢量状态下，气动矢量角的相对误差不大于10％，推力系数的相对误差不大于2％；在非矢量状态下，红外辐射的计算值与发动机实测值相比，其空间分布基本一致，基本可以满足工程设计的要求。

Radon and thoron calibration factors are 1.78 and7.63 respectively , the relative error of radon concentration ERS-2 measured is 3.0%compared to the standard radon concentration and thoron is 3.2%. We deduced theequations which can eliminate the mutual interference between radon and thoronmeasurement .

通过 ERS—2 氡析出率仪器的研究，对 ERS—2 测量析出率中道址的选择以及扣除氡钍干扰问题进行了讨论，氡道道址设置为 60—115，钍道道址设置为 119—128，氡钍的刻度系数分别选为 1.78 和 7.63，测得的氡浓度与标准氡浓度的相对误差为 3.0%，测得的钍射气浓度与标准钍射气浓度的相对误差为 3.2%。

The accuracy of this semi-analytical inversing model was validated by using the larger-scale in-situ data, and the result shows that the correlation is 0.84 with the relative error 22.6% and absolute error 4.7 m.

利用大量实测透明度资料对模式进行了验证，结果表明遥感反演透明度与实测透明度的相关系数为0.84，绝对平均误差为4.17m，相对平均误差为22.6%。

Firstly, PLL linear model is established in order for the comparative analysis between phase step error response and phase rectangular-pulse error response under different damping ratio. The ideal PD waveform expression is figured out.

首先通过建立锁相环的线性化模型，对比分析了不同阻尼系数的相位阶跃误差响应和矩形相位误差响应，推导了理想状态下鉴相器输出的波形表达式。

When this kind of converter is working at the prescribed temperature confine,it keeps being humdrum character,high precision of the conversion(linetype error ≤± 1 LSB、 differential coefficient error ≤±1 LSB), speediness(the time of establishing the putput voltage ≤3μ s), low power consume(power consume ≤ 600mW),good temperature capability(the temperature coefficient ≤30ppm), large-scale output range.

本D／A转换器在工作温度范围内保持严格的单调性、转换精度高(线性误差≤±1 LSB、微分误差≤±1 LSB)、转换速度快(电压输出建立时间≤3μs)、转换功耗低(功耗≤600mW)、温度性能好(增益温度系数≤30ppm)、输出电压幅度大(±10V)并且可以灵活应用于0～5V、0～10V、±2.5V、+5V、+10V多种输出范围。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。