回归系数

Minimum of relative efficiency of eight groups of data is 0.996 3. It is quite remarkable under 0.01 confidence.

对于试验数据用幂指式模型进行线性回归。8组数据处理得到的最小相关系数Rh=0.996 3，在0.01信度下是高度显著的。

Results the parameter estimates and it's stability of linear regression models is associated with the variation of explanatory variable between and within level 2units,and the relationship of parameter estimates and it's stability between linear regression models and variance component model is associated with level 2 residual variance or intatra-unit correlation.

结果 线性回归模型参数估计以及估计的稳定性与自变量在水平2单位间和水平2单位内的变异大小有关，线性因归模型与方差成分模型参数估计及其稳定性的关系与水平2残差方差或单位内相关系数大小有关。

Based on the tests in laboratory on the concrete composed of manufactured sand and fly ash,the relationships of the strength of concrete and the binder to water ratio are analyzed by the method of liner regression and the coefficient values of α-a and α-b are determined respectively.

根据实验室内进行的人工砂混凝土和人工砂粉煤灰混凝土配合比试验结果，采用线性回归统计分析了人工砂混凝土和人工砂粉煤灰混凝土强度与水灰比的关系，求出αa，αb系数。

The procedure involves the use of a capillary chromatography column (HP-INNOWAX, 30 m×0.53 mm×1.0 um) and FID detector. The result showes that 4 solvents are completely separated, the regression equation coefficients of 4 solvents are above 0.99, the recoveries are 90%~110% and the RSDs are less than 2.0% respectively.

实验的色谱柱为HP-INNOWAX(30 m×0.53 mm×1.0μm)毛细管色谱柱，检测器为氢火焰离子化检测器。4种溶剂均达到完全分离，各溶剂线性实验所得回归方程的相关系数均大于0.99，加标回收率为90%~110%，RSD.0%(n=6)。

The standardized estimated value of latent variable score was obtained with LISREL 8.53 in this paper.

采用了基于潜变量得分的多水平多重回归模型及单变量随机系数模型，辅以图示获得了较为直观的结果。

The result of a stepwise regression showed that LAI had the highest contribution to the change in light trans-coefficient in the sward, and followed by MLA and plant height.

逐步回归分析表明，叶面积指数对冠层消光系数的影响最为显著，其次是平均叶倾角和株高。

The raw materials of anti-static terrazzo have been produced in mould process. The influences of molding temperature and molding pressure on the performances of anti-static terrazzo have been investigated.

同时进行了范围较广的碳黑含量与体积电阻率关系的实验，求得的回归方程具有很高的相关系数，能够较准确地预测乙炔碳黑含量与其导电性能的关系。

A thiocyanate differential spectrophotonetry method was used to determine the high content tungsten and satisfactory results were obtained.

采用硫氰酸盐示差分光光度法测定高含量的钨，取得了较好的效果。方法的回归方程较好，相关系数为0.99995；样品回收率为99.3%～100.2%，RSD为0.28

The dissipation factor tip-up D tan d , the change of capacitance D C / C 0, the maximum discharge q max and the mean discharge magnitude q mean , A compared investigation of the correlations between V min , V av and service time were compared with those between D tan d , D C / C 0, q max, q mean and respectively.

对大量的不同运行年数的线棒进行了超声波 V min 和 V av 测量，以及介质损耗角增量 D tan d 、电容变化率 D C / C 0、最大放电量 q max 和平均放电量 q mean 等电气测量试验，对比研究了超声参数( V min 和 V av )和电气测量参数( D tan d 、 D C / C 0、 q max 和 q mean )与运行年数的相关性，发现， V min 和 V av 与的相关性很强，相关系数 R 分别为0.892和0.890，而 D tan d 、 q max 和 q mean 与的相关性较弱， R 在0.55~0.60范围内， D C / C 0与几乎没有相关性， R 仅为0.310；采用线性回归分析，分别建立了 V min 和 V av 与的二阶和三阶线性函数的数学模型， R-S 分别为0.828和0.903，并分别提出了最可靠运行年数和置信度为95％的可靠运行年数的预测方法。

The model was developed using the single factor analytic approach and correlation coefficient analytic approach considering phosphate removal as dependent variable and plasma phosphate concentrations,dialysis time,ultrafiltrate volumes,blood flows as predictor variables.

先用相关系数矩阵和单因素分析法进行数据的初步分析，然后用多重线性回归分析的方法推出总磷清除量与透前血磷浓度、超滤量、血流速、时间的公式。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。