In order to ameliorate the status of water shortage and improve the economy development of this area , the technique of rain harvesting and water conservation in gneiss area of tai - hang mountain have been studied by the experiment of rain and the experiment of the investigation in the field 为了改善该区干旱缺水的现状，促进当地的经济发展，以人工模拟降雨和野外观测试验相结合的方法，进行了太行山片麻岩区集雨保水技术的研究。得到了如下结果： 1
Meanwhile , an artificial imitation rainfall system was developed in order to study the characteristics of city underlying surface and make experimental check up about the relative appraising index , on which 200 rainfall experiments are made , analyzing the effect of rainfall intensity to the runoff of underlying surface ; the relationship between runoff permeability and unit factor of rainfall intensity and duration ; the effect of rainfall intensity , duration , soil moisture content , and temperature to the runoff permeability ; the relationship between rainfall quantity and runoff permeability , and make mathematical imitation to the expe rimental results , to find the mutual - relationships , and make discussion about the differences between equations of fit 同时，为研究城市下垫面的产汇流特性研制了一套人工模拟降雨系统，并对相关评价指标进行了实测校验。在此基础上，进行了200多场降雨实验，分析了雨强、历时、土壤前期含水量、温度、降雨量、不同下垫面和不同覆盖度等对产汇流的影响，及各种因素对径流系数的影响和相关性，建立了一定条件下历时径流系数，雨强径流系数，流量径流系数的函数模型。
Chemical industry information not merely embodyed the ordinary chemistry information substance , chemistry manufacture technological process and representative installation introduction are still have , in case contacing legal institutions sulphuric acid ? nitric acid industry system law ( ammonia oxidate law ) , synthetic ammonia industry , chlorine and caustic soda are manufacture to electrolysis salt water , along with electrogilding , refine aluminium , iron - smelting and steel - smelting , cement and glass manufacture summarized account , the mineral oil is refined , hence , the chemical industry information education is contrastd against the ordinary chemistry information education , proper such representative means , be living , the means interpreted is in speech oridinarily wholly adoptd in the chemical industry information education , now most of tutors also is adopt the means interpreted in speech , cause that the chemical industry information education is insipid like this , student lack interest to chemical industry information study , but as a result of value the pair foundation , light practice , student may say the become a mere formality to chemical industry information study o since multi - med 化工知识不仅包含了一般化学知识的内容，还带有化学生产工艺流程及典型设备的介绍，如接触法制硫酸，硝酸的工业制法(氨氧化法) ，合成氨工业，电解食盐水制造氯气和烧碱，以及电镀、炼铝、炼铁和炼钢，水泥和玻璃的生产简介，石油的炼制等，因此，化工知识教学与一般化学知识教学相比，应有其典型的方法。在过去，化工知识的教学一般都采用口头讲解的方法，现在大多数教师也是采用口头讲解的方法，这样使得化工知识的教学乏味，学生对化工知识的学习缺乏兴趣，又因重视双基，轻实践，学生对化工知识的学习可以说流于形式。由于多媒体的辅助教学的高效性、形象直观性、新颖性和多样性、人工模拟等特点，很适合化工知识的教学，应用多媒体教学化工知识可以解决目前存在的诸多问题，如：模型短缺、组织参观活动困难、教育经费不足、学生不易观察等。
Vegetable soil was treated with the 20ml / s mixed gas of hydrogen and air ( the ratio = 1 : 9 ) by the man - made analog equipment that can release hydrogen just like nodules , at the same time , control was made that treated with 20ml / s air flow . after three month , analysis the soil . which nutrition and how it changed were try to find . result indicated that nitrogen was changed but phosphorus and potassium had no evident change 采用人工模拟根瘤放氢装置，一系列相关指标的变化，有效养分发生了何种变化及其可能机理。结果表明，土壤经氢处理后对氮素及其相关因子表现出较大影响，而对磷素和钾素及其相关因子无明显改变。
The project was carried out to study the changes of topsoil surface structure and the relationship between soil surface structural change and the soil erosion under simulated rainfall , by measuring erosion parameter and observing soil surface micro morphology during the process of rainfall 本实验以鄂南几个侵蚀红壤为研究对象，运用人工模拟降雨方法，通过测量侵蚀参数与观测不同时段的表土微形态，力求找出降雨过程中红壤表土结构的变化过程及其与土壤侵蚀的关系，为我国南方水土流失提供理论依据。
According to the frndamental and the steps of this method , we cans use the linear regress filter method to make the simulation of the wind load and then we can educe the curve of the time - process wind velocity . after that step , we can get the chart of the dynamic wind load which we can deliver the crosswind into the particle wind load and put them on the corresponding cell nodes . then we can do the analysis of the dynamical wind load through the time - process analysis to get the max value of the displacement 根据线性回归滤波器法的基本原理和步骤，借助相关软件进行风荷载的人工模拟并得出风速时程曲线，进而转化为风动力谱，由此将横风向风力表达成节点风荷载作用于相应的单元节点上，按时程分析法对该空间桁架体系进行风荷载的动力分析，求出结构在进行风动力荷载分析时，结构相应节点对应的最值位移值。
The research of soil degradation in pur country is mainly concentrated on the red earth hilly area in the south in the past , and is less on the loess plateau that is one of the most fragile areas . based on field experiment and laboratory analysis , discuses the degradation mechanism , and raises the methods of refreshing and reestablishing land productivity of huangshan soil in chunhua county of shaanxi . in the hope of serving development of western regions and ecological environment construction that concede the land to forestry ( the grass ) 我国以前对土壤退化问题的研究主要集中于南方红壤丘陵区，对生态环境最脆弱的黄土高原地区的土壤退化研究相对较少，故本文以黄土高原地区陕西淳化县的侵蚀性黄?土为对象，通过野外人工模拟降雨试验和室内分析相结合的方法，探讨了侵蚀性黄?土的退化机理，提出了恢复和重建黄?土土地生产力的途径和方法，以期服务于西部大开发和退耕还林(草)的生态环境建设。
Accompany with to make the development of the cold air condition profession , the measure and control ' s technique and experiment with function to equip of the cold air condition product get the quick development , and differ from the other product , the function parameter of the cold air condition product ca n ' t be mostly directly measured , but must under the artificial environment , at keep on in the stable appearance , measure the some related physics of these parameter first , again through the calculation indirect out to measure result , but the measure accuracy and stability of these related parameter bring up the very high request to the measure and control ' s system 伴随着制冷空调行业的发展，制冷空调产品的测控技术和性能试验装置也得到迅速的发展，不同于其它产品，制冷空调产品的性能参数大都不能直接测量，而是必须在人工模拟的环境工况下，在持续稳定的状态中，先测量这些参数的某些相关物理量，再经计算间接得出测量结果，而这些相关参量的测量精度和稳定性对试验装置中的测控系统提出了很高的要求。
Through measuring slope forms on the spot , serried sampling , physical and chemical analyzing , and measuring soil erosion from natural and artificial rainfalls , the project researched in the approaches and behaviors of soil erosion affecting contents of soil carbon and nutrient , and the law of soil carbon and nutrient distributing in micro - topographty under influences of soil erosion . in the same time , supported by geographic information system , models of soil carbon and nutrient changing with soil erosion have been built , and spatial processes of soil erosion affecting soil carbon and nutrient have been simulated , and annual and long - term changing of soil carbon and nutrient under impact of soil erosion have been estimated and forecasted , and synchronously , a elementary assessment for different soil erosion management has b een performed by using the models built in the study 本研究以三峡库区秭归县水田坝乡王家桥小流域四个径流试验区二十个标准小区为研究对象，通过坡形实地测量、坡面密集采样的颗粒分析和养分含量分析以及人工模拟降雨实验，研究了土壤侵蚀对土壤碳和养分的影响途径和表现，侵蚀作用影响下土壤碳和养分在微地形空间的分布规律；同时，在地理信息系统的支持下，建立了侵蚀条件下的土壤碳和养分变化模型，模拟了侵蚀对土壤碳和养分影响的空间过程，预测了侵蚀影响下土壤碳和养分的年变化及多年变化，并通过研究建立的模型对不同侵蚀控制措施进行了初步的效益评价。
Through rainfall simulating under laboratory , and making slice of sampling , the project researched in the soil crust development , and studied the dynamic rule of erosion factors which were raining and soil erosion factors during soil crust development . in the same time , the research was to find the critical condition of all factors in the process of soil crusting , and to filter the critical factor that could affect soil surface crust 本文采用人工模拟降雨方法，通过采样制作土壤切片，观察分析表土结皮在不同条件下发育的微形态特征，研究降雨、土壤等侵蚀产沙因子在表土结皮发育过程中的动态响应规律，界定表土结皮发育过程中各因子的临界条件，筛选有关土壤颗粒组成、结构特征等物理化学性质对表土结皮形成影响的关键因子。
