This dissertation mainly deals with the surface reconstruction on the basis of the numeric tooth surface of the spiral bevel gear . the first step of surface reconstruction is designing the algorithm to partition the grids and transforming the origin data to the matrix style face by face 螺旋锥齿轮齿面形状复杂，一般采用数值仿真的方法进行设计，为了使得到的数值齿面能被通用cad cae软件采用，需要把离散点连续化，重构出轮齿表面。
For accumulating heat from piping and making as even the temperatures in various spaces betwiin pipes an possible , gravel foundation is first laid , mortar is mixed fully by mixing ratio of 1 : 2 , the floor is finished level and then perfect curig in damp condition is carried out 为保证管路间蓄热和温度均匀应铺下砂砾层后进行配比为1 ： 2的灰浆完成处理，不仅要保证地板水平，还要在湿润状态下自然干燥，使得到彻底的养护，人为的养护会导致地板雏裂，应予以注意。
At the same time , the dissertation compiling the program to solve the mathematical model by visual basic , predigest consequently process of solving and grain more precise value , on the side , compare resistance state of the different parameter and simulate the curve of resistance to optimize sciencly structure and design parameter of subsoiler 同时，本文利用计算机高级语言vb编制求解数学模型的程序，从而进一步简化了计算过程，并且使得到的结果更加精确，并可以比较各种不同参数情况下的受力状态，模拟出受力曲线，以科学地优化深松铲的结构和设计参数。
Interbasin water transfers ( iwt ) is one of measures which can effectively resolve the problem of water resources uneven spatio - temporal distributing . but that the complexity of iwt , the integration and varieties of involved factors , and the differences between each iwt system make the study on water resources management of iwt system have n ' t be systematical and perfect by now 跨流域调水是解决水资源时空分布不均的一条有效途径，但由于跨流域调水的复杂性、所涉及问题的综合多样性以及各跨流域调水系统自身具体情况的不同，使得到目前为止，对跨流域调水系统水资源管理问题的研究尚未系统、完善。
In recent measuring method , protein electrophoresis is rapid , accurate , steady and economic , not affected by environment condition , we improve reactive system of our national tentative com protein gelatinous electrophoresis , and that which is more adapted to imaging process 在玉米种子纯度检测的方法中，蛋白质凝胶电泳法具有快速、准确、稳定、经济、不受环境条件影响等特点，因此，选取此方法作为种子纯度检测方法。对国家试行的玉米蛋白凝胶电泳法的反映体系进行了改进，使得到的图像更清晰。
Furthermore , in order to assure that the acquired classification rules to be accuracy as well as comprehensible , we put forward a method to compute the comprehensibility of the classification rule using attribute information gain , different to the other methods which evaluate the comprehensibility of the rule only by its simplicity . thus the output of the mining is more understandable and informational . we also do it using a niche - based ga 在此基础上，为了从现有数据中挖掘易于理解的分类规则，本文提出了一种应用属性信息增益计算分类规则可理解性程度的方法，改进了以往方法中仅依靠规则的简单度来评价分类规则易于理解性的缺点，从而使得到的分类规则包含有更多的分类信息，更加有助于用户的理解。
