| 1. | The relationship between soil compactness and feature parameters is then investigated and the corresponding experiential formulas are established . 4
分析了各特征参量同土密实度之间的相关关系，并给出了相应的经验关系式。 |
| 2. | The correlations and analytical models developed for vapor flow in tubes are limited to their experimental conditions , and they cannot be used beyond their data base with confidence
他们根据实验得到的经验或半经验关系式，其适用工况范围很小，如果用于其他工况就会使分析结果存在很大的不确定性。 |
| 3. | 4 . a heat transfer correlation is developed by comparing the experimental data with the past correlations . and the deviation between the predicted and experimental values is 30 %
4 、将实验所得冷凝平均换热系数和已往经验关系式比较，得出了适用于本实验的相应经验关系式，实验数据点均落在关系式预测值30内。 |
| 4. | ( 4 ) a heat transfer correlation is developed by comparing the experimental data with the past correlations . and the deviation between the predicted and experimental values is 30 %
( 4 )将实验所得冷凝平均换热系数和已往经验关系式比较，得出了适用于本实验的相应经验关系式，实验数据点均落在关系式预测值30内。 |
| 5. | The experiential formulas are verified by experimental results and then - correctness and reliability is discussed . furthermore , the capability in determining soil compactness of these formulas is compared and analyzed . 5
根据室内试验结果对提出的几个经验关系式进行了验证，分析了各经验关系式的可靠性和精确度，并对各个关系式在土密实度定量计算中的性能进行了对比分析。 |
| 6. | Cycled shear tests for different part expansive soils and triaxial shear tests for different fissures growth extent expansive soils are carried out . the strength variation of expansive soils along with the variation of fissures degree and saturation degree is summed up , and fitting formulas are summarized
还进行了不同部位的膨胀土反复剪试验和不同裂隙发育程度的膨胀土三轴剪切试验，研究了膨胀土强度随裂隙度及土体饱和度变化而变化的规律，并提出了相应的拟合经验关系式。 |
| 7. | By means of a mass of shear strength test of rough cement face of concrete - bedrock , influences of cement face roughness of two mediums on shear strength parameter , shear deformation characteristics , shear failure mechanics are systemically studied . empirical relationship between fractal dimension of cement face roughness and shear strength parameters is established
通过大量的混凝土?基岩粗糙胶结面抗剪强度试验，系统研究了两相介质胶结面粗糙度对其抗剪强度参数值大小、剪切变形特征、以及剪切破坏机理的影响，建立了胶结面粗糙度分维数与抗剪强度参数之间的经验关系式。 |
| 8. | We also use polynomial function to model the soil moisture under drip irrigation ; and the function will be useful for design the drip irrigation system and fertigation system . ( 2 ) the amount water added and the way of supplying water and fertilizer were two key important factors to affect the movement , transformation , and leach of urea - n in soil
比较了不同模型拟合的滴灌条件下土壤湿润锋的动态变化，认为多项式模型的拟合程度较好；同时建立了土壤湿润体水分含量( y )与径向距离( l ) 、垂向距离( h ) 、实验时间( t )之间的经验关系式。 |
| 9. | Second , the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model , which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system . third , the normal running process is analyzed and calculated by means of rational matching theory , which gives some advice on how to better understand the parameter change under steady state and the affection of inlet - parameter on evaporator . fourth , the simulation software with dynamic characteristic is designed , which can be applied to calculate thernio - parameter of cryogen , air humidity and frost thickness under different initial and boundary conditions , and to carry out dynamic simulation under conditions of dryness , wetness and frostiness , at the same time , to achieve detection and simulation at any stage from starting to stopping
本文的主要内容如下： 1 )对翅片管蒸发器结构特点进行分析，选取适当的微元控制体，就干、湿和霜工况下对每个微元分别进行传热传质分析，基于经验关系式确定霜的有关参数，对于霜工况下的霜生长建立模型，经适当假设，运用质量守恒、能量守恒和动量守恒方程建立适合动态仿真的蒸发器数学模型，为系统仿真奠定基础； 2 )对蒸发在大扰动下的开、停机过程，运用动态集中参数模型进行分析和计算，为更好地描述制冷系统运行的全过程奠定基础，同时也为制冷系统实现自动控制提供一定的理论基础； 3 )对蒸发器正常运行过程，运用动态分布参数和参数间定量耦合的观点来分析和计算，为更好地了解稳态工况下各点参数的变化情况及各入口参数对蒸发器动态特性的影响即蒸发器性能对各参数变化的敏感性； 4 )编写翅片管蒸发器动态特性仿真计算程序，可以计算不同边界条件和初始条件下的制冷剂热力参数、空气温湿度和霜厚度分布场，实现对翅片管蒸发器在干、湿和霜工况下的动态仿真。 |
| 10. | In this paper the experimental research of hydra ulic oil used on a certain composite gearbox are carried on the experimental fo rm ulas are drawn respectively between viscosity 、 density 、 specific heat and temper ature the function of viscosity to temperature and pressure is deduced the com parative analysis among the new oil 、 used oil and ordinary antifriction oil ind icates the performance of the specitic oil is excellent these conclusions are b eneficial to the advanced analysis of the vehicle transmission system and formul ate the manual of relevant armored caterpillar
该文对某军用履带装甲车辆综合传动系统使用的液压油进行了试验分析，得出了这种液压油的粘度、密度、比热与温度的经验关系式，推导出了粘度在温度、压力综合作用下的函数关系，并对新油、旧油、普通抗磨液压油的粘度进行了对比分析，这对于使用这种液压油的传动系的分析计算和制定相关军用履带装甲车辆的使用规范提供了重要的理论依据 |
