| 1. | Empirical equations are frequently used for column designing .
通常设计柱体采用经验公式。 |
| 2. | The results predicted by the ann model are compared with those obtained by 4 empirical equations
将神经网络计算结果同4种经验公式计算结果进行比较，其精度明显高于其他4种模型。 |
| 3. | On the basis of these factors , an empirical equation for the maximum pressure drop was determined
在综合考虑各影响因素的基础上，得出了双喷嘴矩形喷动床最大喷动压降的经验关联式。 |
| 4. | Stress concentration factor generally is calculated based elastic mechanics method or empirical equation derived the conclusion of testing
应力集中系数一般由实验确定或由弹性力学方法求出。 |
| 5. | Regressed the experimental date with linear use minimal dual multiply method . got the empirical equation of heat transfer and flow resistance in laminar , transitive and turbulent zone
Reb随肋高h 、肋轴向间距pt的增大而减小，随肋宽的增大而增大。 |
| 6. | Finally by means of capillary bundle model , the empirical equation is given to describe the non - darcy filtration features in single facies fluid of low permeability oil reservoirs
最后通过毛管束模型给出了描述低渗透油藏单相流体非达西渗流特徵的经验方程。 |
| 7. | The third chapter is the main body about the empirical analysis . firstly the paper clarifies the research thinking , choice variables , empirical equation and relationship
第三章是本文的主体部分，首先对研究思路、变量选择、实证方程和相关关系作了必要说明。 |
| 8. | By investigating systems with quadrilinear backpones and summarizing the results into a few empirical equations , a new software tool , spo2ida , allows direct assessment of demand and capcity
通过对具有四线段骨架曲线的sdof体系的研究,并把它们之间的关系汇总成几个经验公式,应用软件spo2ida可把spo曲线转化为相应的ida曲线来对结构的地震需求和能力做出评估。 |
| 9. | The empirical equation w = asb was used to fit water holding capacity of four kinds of agricultural soils in loess plateau . soil water holding capacity and unavailable water content increased as soil texture became clayed . available water content in loam was higher than those in sandy soil and clayed soil
黄土高原四种主要农业土壤的水分特征曲线并无明显的平台或拐点产生，其关系能够很好地用garden经验方程( w = as ~ ( - b ) )进行拟合。 |
| 10. | Finally , the correlation between partial silt indexes is studied . the correlation analyses between physical indexes can be used to decide whether these indexes can be looked as independent variable at the same time in reliability design , furthermore , the correlation between mechanical and physical are also studied and some empirical equations with practical usage are drawn up
本文对物理指标间的相关性作了研究，这在可靠性设计时，它们能否同时作为独立随机变量处理具有重要的意义；同时，又对压缩指标、强度指标与物理指标间以及不同类强度指标间的相关关系作了分析，得出了一些有实用意义的经验公式。 |
