变化系数

The coefficient of determination, r^2 measures the proportion of the total variation in the value of one variable that can be explained by variations in the value of the other variable.

可决系数 r^2，表示一个变量的变化可以用 r^2%的另一变量变化来解释。

A regression equation's coefficient of determination, r2, tells the percentage of variation in the cost that is explained by changes in the cost driver.

决策的回归方程式决定系数R2，说明了通过成本动因的变化而产生的成本的百分比变化。

The effects of excess air coefficient and cylinder pressure on these spectra are also studied. The experimental resultS show that the three different combustion phases in a gasoline engine have different combustion characteristic spectra: a large number of atoms, molecules, ions and radicals which are in their excited states are existing during the ignition process, with the development of the combustion, the spectra intensities of CH, C2 radicals increase rapidly.

实验结果表明，汽油机三个不同的燃烧阶段具有不同的燃烧光谱特征：着火过程中，存在着大量的处于激发态的分子、原子、离子、自由基等活化中心的束缚态光谱，随着燃烧发展，CH、C2自由基的光谱强度明显加强；当减小过量空气系数时，光谱强度变弱并且着火延迟期增长；自由基特征光谱的光强变化曲线可以反映它们在燃烧过程中的浓度变化。

Further study of this paper has shown that reason for"camel peak"phenomenon in the adhesion-creep test curves is difference between sliding-and static coefficient of friction and discussed the analytic formulae for line contact as well as one direction slip and special correction Lemk's method for point contact when their change is considered as stage jump function.

通过进一步的理论研究指出造成轮/轨粘着率与弹性滑移率实验曲线呈"驼峰"状的原因是滑动区和粘着区的动、静摩擦系数变化，给出了当它们为阶跃变化时线接触条件下的解析解和对点接触情况的独特的"修正"Lemke算法。

However, via intensive numerical computation, the author finds that actually some characteristic of this confidence intervals, for example, confidence coefficient, expectation width and coverage efficiency fluctuate intensely when the sample size varies given the parameter, or when the parameter varies given the sample size.

但是我们通过精细的数值计算发现，由于总体分布的离散性，这些置信区间的特性(置信系数、期望长度、覆盖效率)实际表现为当参数固定随着观测次数变化或当观测次数固定随着参数变化而发生强烈震动。

Objectives: To observe the influence of Danshen to the expressions of mRNA and protein of local hypoxia inducible factor-1α(HIF-1α) during acute ischemia reperfusion injury of skeletal muscles in SD rats, and its effects on the changes in erythrocyte aggregation index, erythrocyte deformation index, local swelling coefficient and histology of the left cremaster muscles of SD rats during ischemia reperfusion injury, therefore to discuss the influence of Danshen to the oxygen environment and hemorheology of skeletal muscle during ischemia reperfushion injury.

目的：通过建立SD大鼠左侧提睾肌的缺血再灌注损伤模型，观察丹参对SD大鼠骨骼肌缺血再灌注损伤局部缺氧诱导因子1α（Hypoxia Inducible Factor-1α，HIF－1α）mRNA及其蛋白表达的影响、对红细胞聚集和变形指数的变化、局部肿胀系数的变化以及组织形态学改变的作用，探讨丹参对缺血再灌注损伤骨骼肌局部氧环境及血液流变性的影响。

The inner connection between one step cross correlation coefficent and theabove characterisitc changes is analyzed in a deep-going way.

分析了一步互相关系数的变化与互谱上述两种特征变化的内在联系。

A detailed calculation on the scattering of a conduct disk is given by means of Incremental Length Diffraction Coefficient method and Phyzical Optics method. The relation between Radar cross section of the conduct disk and the incident angle and the relation between the optimal polarization and the incident angle are investgated and the calculation results from ILDC and that from PO are compared.

用微分边缘绕射系数法和物理光学法对金属圆盘的散射作了详细地分析计算，讨论了其极化散射特性给出了雷达截面积随角度的变化曲线并与用物理光学法计算的结果进行了对比，同时还给出了其最优极化随角度变化时的分布图。

When the time is fixed,the higher concentration of La3,the larger the ratio of electrolyte exosmosis,the severer destroy to root membrance. The rule of P and K+ in root exudation changed is similar to the ratio of electrolyte exosmosis.

同时根系分泌物中K~+和P含量的变化与电解质外渗率的变化规律相似，相关性分析表明其相关系数分别为0.963和0.915分别达到了极显著水平。

Furthermore, the process of proportion resistance in the feedback circuit is changed, and the change of sampling voltage with sampling resistance is compensated with resistor. The impact of environment temperature on loading capacity and peak current is reduced.

此外，对反馈环中的比例电阻采用不同的工艺制作，通过电阻的温度系数补偿由采样电阻随温度变化所造成的采样电压的变化，减小温度对电路的带负载能力和峰值电流的影响。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。