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- Quality Variation Coefficient 质量变异系数
- Variation coefficients of rice difference quality traits have great disparity. 不同品质性状的变异系数差异悬殊。
- Further analysis indicated the positive linear correlation between CFE and the variation coefficient of hprt gene. 细胞转化与hprt基因突变相关分析证实 ,两者之间存在显著的线性正相关关系。
- The mean variation coefficient of CACD,ACA and ACV measurements were 0.4%,3.9% and 2.6% respectively. 前房轴深、前房夹角、前房容积的平均变异系数分别为0 4%25、3 9%25、2 6%25。
- The results showed that the standard deviation for trichlorfon was 0.3233, the variation coefficient was 0.3551%, the average recovery was 99.65%, liner correlation was 0.9997. 结果表明，本方法的标准偏差为0.;3233，变异系数为0
- The method is easy in operation and accurate in outcome with a recovery ratio of 93.9% and a variation coefficient of 1.4%. 方法简便、准确.;回收率93
- This paper first measures interregional disparity in financial capacity by variation coefficient weighted by population. 摘要首先采用以人口为权数的加权变异系数对地区间财力差异进行了度量。
- The optimum design example shows that the variation coefficient of load torque acting on cutting head is decreased 13.9%, and specific energy cons... 优化设计实例表明;截割头的负载转矩变差系数减小了13.;9%25;截割比能耗降低了16
- The paper studied stable seepage flow rule of overpressure reservoir and created the method for using systematic well testing data to compute permeability variation coefficient. 本文研究了异常高压油藏稳定渗流规律,建立了利用系统试井资料求取渗透率变化系数的方法。
- Additionally, the structure and quality variation of SEBS modified asphalt and SBS modified asphalt was analyzed both before and after aging by FHR (Fourier transform infrared spectrum). 用傅立叶红外光谱分析了沥青及SBS，SEBS改性沥青老化前后结构与性能的变化。
- Through analyzing the HTF's heating process, this paper provides six items and corresponding testing methods for how to determine the quality variation of HTF in use, and some evaluating indexes. 摘要通过对合成导热油加热过程的分析，提出了确定使用中的合成导热油品质变化程度的六个项目和测定方法，并提供了评价使用中的合成导热油品质变化的指标。
- To be examined the quality variation of the oxidated coal, two kinds of coal samples, blind coal and bituminous coal, were selected and heated in a series of temperature environments. 摘要为探讨煤在氧化后发生的性质变化，选取无烟煤和烟煤2种煤样，在不同的温度下进行加热。
- The results showed that the treatment efficiency of intercepting sedimentation tank with excellent capacity of intercepting flocculation and adaptability to water quality variation w... 结果表明，拦截沉淀池有优异的拦截聚沉和对水质变化的适应能力，处理效果要明显优于平流沉淀池而接近于斜板沉淀池，有很好的开发及应用前景。
- Through the analysis of water quality data for multi-years in stem river and tributary rivers in TGP reservoir area,the water quality variation before and after impoundment of TGP is analyzed. 通过对三峡库区干支流水文断面蓄水前后多年水质资料进行整理分析,分析了蓄水前后库区河流水质变化趋势。
- The results showed that the standard deviation for triazophos are 0.3076, the variation coefficient are 0.3853%, the average recovery are 99.58%, liner correlation are 0.9997. 结果表明;三唑磷的标准偏差为0.;3076;变异系数为0
- The average biological activity of the reference in 10 calibration tests was 12 701 ATU per container,and standard deviation and variation coefficient were 2 226 ATU per container and 17.5% respectively. 经过10次标定;平均生物学活性为12 701 ATU/支;标准差为2 226 ATU/支;变异系数为17.;5%25。
- After a series of tests of the vertical screw mixer the following conclusions were obtained:1. As the time goes on the variation coefficient CV of the mixed material was rapidly decreased, 4 seconds later, the value of CV becomes less than 10%. 机组的混合机经试验得出如下结论: 1.;随着混合时间的延长;混合物的变异系数CV值迅速下降;4分钟后CV值稳定在10%25以下。
- A RP-HPLC absolute calibration curve method for the determination of Regent. Results showed that the standard deviation was 0.052,the variation coefficient was 0.94% and average recovery was 99.9%. 利用反相高效液相色谱外标法测定了锐劲特的含量 ;方法的标准偏差为 0 .;0 52;变异系数为 0
- A method was described for the quantitative analysis of triazo-phos by HPLC.The result showed that average recovery rate was 99.2 % , variation coefficient 0.83%, relative coefficient 0.9986. 采用反相高效液相色谱法对三唑磷乳油进行定量分析;其变异系数为0.;83%25;平均回收率为99
- In overpressure reservoirs,the permeability of reservoir rapidly decreases with the formation pressure decreasing and the permeability variation coefficient is important characteristic parameter. 在异常高压油藏储层中,储集层渗透率随地层压力下降而急剧降低,渗透率变化系数是重要的特性参数。
