use curve meaning in English
利用曲线
使用曲线
Examples
- 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。