| 1. | Study on calculation of energy variation coefficient in water supply
供水能量变化系数计算方法探讨 |
| 2. | Daily variation coefficient
日变化系数 |
| 3. | Based on the standard deviation and variation coefficient , soil water change in the profile could be divided into four layers by cluster analysis
基于标准差和变异系数两个指标，采用聚类分析，可将土壤剖面水分垂直变化划分为四个层次：速变层、活跃层、次活跃层和相对稳定层。 |
| 4. | With increase of the climate variability , the amplitude of increased yield simulated would be reduced . and the variation coefficient ( vc ) of the simulated yields and their instability would also increase
但随着气候变率的增大，模拟产量的增幅明显变小，产量变异系数增大，稳产性变差。 |
| 5. | To overcome the shortcomings of the methods to subjectively or objectively determine the weight of indexes , the group eigenvalue method combining with the variation coefficient method was adopted
为解决用主观赋权法和客观赋权法确定指标权重存在的问题， ?用群组决策特徵根法和变异系数法相结合的方法。 |
| 6. | The monte - carlo method is applied to analyze the reliability of soil nail stability and to discuss the averages and variation coefficient of soil parameters on the reliability index based on an engineering example
研究各种参数的重要程度以及影响范围，得出有意义的结论，并对土钉设计施工提出建议和要求。 |
| 7. | Analysis results in light of mcm indicate that the variation coefficients of c and have more notable influence on p than their means , and their correlation has little . 3
Mcm法的分析结果表明： c和变异系数的大小将对产生很大的影响，而它们的均值对的影响则没有那么显著； c和的相关性对的影响相对较小。 |
| 8. | The quantitative relationship between the corrosion residual life and corrosion rate , variation coefficient , corrosion allowance and reliability is built up , and equations for calculating the corrosion residual life are derived
初步建立了腐蚀剩余寿命与腐蚀速率及变异系数、腐蚀裕量、可靠度之间的定量关系，得到了确定腐蚀剩余寿命的计算公式。 |
| 9. | The first part introduces the indexes of the regional disparities and the methods of regional disparities calculation . for example , gini coefficient , standard deviation , variation coefficient , and so on . at last , sum up the study results
第一部分首先对地区差距测算指标进行研究,介绍了测算地区差距的多种计算方法,如标准差、基尼系数、变异系数等,并详细总结了研究领域目前的实证研究成果。 |
| 10. | On the one hand , intra - annual distribution of runoff is extremely uneven with high concentration degree ; while on the other , the variation coefficient and annual extreme value little with weak increase tendency of annual changes of runoff volume but it is relative stable
分析结果表明：奎屯河流域径流补给具有地带性和多样性特点，补给来源主要以冰川融水和雨水补给为主；年内分配极不均匀，集中程度高；年际变化相对稳定，变幅小，多年呈微弱增加趋势。 |
