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use curve中文是什么意思

  • 利用曲线
  • 使用曲线

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  • According to the at minicar project of chongqing changan automobile co . ltd . , a series of researches have been carried out . base on the characteristic tests of engine and torque converter , the mathematical models are established using curve fitting
    在发动机性能试验与液力变矩器性能试验的基础上,采用曲线拟合的方法得到了发动机及液力变矩器的数学模型,并对两者联合工作的输入、输出工作特性进行了分析。
  • The contents of the thesis are summarized as follows : 1 . by using curved - fitting method , calculation of local angular deflection of canvas plate is studied , with the help of cubic spine function , canvas plate is formed and then its local angular deflection is worked out . 2
    本文所做的工作概括如下: 1 、运用曲面拟合方法研究帆形板局部角变形的计算方法,通过三次样条函数建立船体帆形外板,然后计算得出帆形板的局部角变形。
  • Paper [ 76 ] provides a integer algorithm for rasterizing free curves , we need change the curve form to implicit function form , then use curve ' s positive - negative property to draw , but we ca n ' t use this algorithm when curve ' s degree is higher than 3 and this algorithm ca n ' t avoid using multiplication ; paper [ 77 ] provides a new generating algorithm , this algorithm can draw bezier very well , but for b - spline curve , we need use convert them into bernstein base form . because this process spends a lot of time , this algorithm has not a good speed and effect for rendering rational b - spline curve
    现在经常采用的算法也是基于几何的算法(即线式生成算法)和基于像素的算法(点式生成算法) ;文献78 ]提供了一种有理参数曲线的快速逐点生成算法,该算法对有理b吮ier曲线的绘制,能起到很好的作用,但是对于有理b样条曲线,必须先通过多项式的代数基与bemstein基间的变换矩阵,把原式用bemstein基表示,这一过程由于计算量大,降低了曲线生成的速度和效率
  • When applying the conventional fourier pseudospectral method on cartesian grids , curved interfaces are represented in a " staircase fashion " causing spurious diffractions . it is demonstrated that these non - physical diffractions can be eliminated by using curved grids that generally follow all curved interfaces
    在直角坐标系下用传统伪谱法模拟地下界面时,弯曲起伏的连续界面会因离散化而成为阶梯状界面,这种阶梯状界面在模拟波的传播时,将产生人为绕射,降低合成记录的精度。
  • As the basic concept , the first step is to modeling by ug . there is different model between propeller and commonly hardware , so we must be use curve modeling , at the same time , characteristic modeling and entity modeling in the whole process . first , we apply offset data for spline fit curve , then scanner smooth curve face
    首先在三维绘图软件ug中对螺旋桨及叶片进行三维建模,由于螺旋桨的造型不同于一般零件的cad造型,故在造型过程中同时采用了曲面造型,特征造型和实体造型几种方法,先由型值数据生成样条曲线,再由样条曲线扫掠生成平滑的曲面,最后通过圆整?延伸得到螺旋桨的三维模型。
  • The author also studied ugii , interface statements and internal functions , after a development by using visual c + + 、 ug / open api , inherit functions of ugii , the functions of curve smooth , surface smooth and surfaces combination . after the tests in motorcycle reverse engineering , 1 ) the bad points can be deleted by using curve smoothing function , so the curve become more smooth
    二次开发的功能在某摩托车型的反求过程中的应用,取得了良好的效果: 1 )曲线中的坏点可以通过调用曲线光顺的模块而得到修改,曲线的光顺性大大改观。
  • A obstacle diagnosing expert system of pu1 steamer fan electrical machine have been set up by using the expert system tool in the movex software and mechanical vibration frequency spectrum knowledge . for the purpose of more straight dealing with vibration frequency spectrum curve , a diagnostic knowledge disposing system is developed by using curve compare method and vc + + and matlab software
    在机械设备故障诊断研究中,以pu1蒸汽风机发电机组为研究对象,结合movex软件开发了基于机械振动谱图知识的故障诊断专家系统,同时为了更加直观地处理谱图曲线,另行用vc + +与matlab软件开发一套基于曲线拟合的机械设备故障诊断知识处理系统。
  • Through approximating the deformation space by using curve and surface offset techniques , we obtain a unified space deformation model . thus the sampling problem is solve naturally at the same time , we provide a unified kernel for the implementation of different space deformation models
    通过对曲线、曲面控制变形中的变形空间进行等距逼近的方法,我们实现了一个一维、二维、三维控制手段的统一空间变形模型,这种统一不但自然地解决了曲线、曲面控制变形中的采样问题,同时为实现各种空间变形提供了一个统一的数学模型。
  • 2 . on the basis of analyzing experimental data for slope land of loess plateau in different slope gradient and rain intensity and soil and water conservation tillage measures , using curve - fitting techniques , a soil infiltration rates model was woke out , the accuracy of the model is tested by a series of experiment data , the result of these indicate that the soil infiltration rates model is accurate and has good stability for slope land of loess plateau . 3 . using soil infiltration rates and runoff time and wetting frontal surface depth of soil infiltration reflect effect of factor affecting soil infiltration rates
    ( 3 )采用土壤稳定入渗速率、坡面开始产流时间、土壤湿润锋面下渗深度三个指标来反映坡耕地土壤入渗影响(土壤性质、土壤初始含水率、地面坡度、降雨强度、积水深度、水土保持耕作措施等)因素效用大小,建立了各因素与三个指标的关系模型,详细分析了不同水土保持耕作措施强化土壤入渗的影响,其中等高耕作作用最为显著,其次是人工掏挖和人工锄耕。
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Last modified time:Thu, 14 Aug 2025 00:29:56 GMT

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