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use curve中文是什么意思

  • 利用曲線
  • 使用曲線

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  • 例句與用法
  • 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
    在發(fā)動(dòng)機(jī)性能試驗(yàn)與液力變矩器性能試驗(yàn)的基礎(chǔ)上,采用曲線擬合的方法得到了發(fā)動(dòng)機(jī)及液力變矩器的數(shù)學(xué)模型,并對(duì)兩者聯(lián)合工作的輸入、輸出工作特性進(jìn)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 、運(yùn)用曲面擬合方法研究帆形板局部角變形的計(jì)算方法,通過(guò)三次樣條函數(shù)建立船體帆形外板,然后計(jì)算得出帆形板的局部角變形。
  • 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
    現(xiàn)在經(jīng)常采用的算法也是基于幾何的算法(即線式生成算法)和基于像素的算法(點(diǎn)式生成算法) ;文獻(xiàn)78 ]提供了一種有理參數(shù)曲線的快速逐點(diǎn)生成算法,該算法對(duì)有理b吮ier曲線的繪制,能起到很好的作用,但是對(duì)于有理b樣條曲線,必須先通過(guò)多項(xiàng)式的代數(shù)基與bemstein基間的變換矩陣,把原式用bemstein基表示,這一過(guò)程由于計(jì)算量大,降低了曲線生成的速度和效率
  • 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
    在直角坐標(biāo)系下用傳統(tǒng)偽譜法模擬地下界面時(shí),彎曲起伏的連續(xù)界面會(huì)因離散化而成為階梯狀界面,這種階梯狀界面在模擬波的傳播時(shí),將產(chǎn)生人為繞射,降低合成記錄的精度。
  • 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
    首先在三維繪圖軟件ug中對(duì)螺旋槳及葉片進(jìn)行三維建模,由于螺旋槳的造型不同于一般零件的cad造型,故在造型過(guò)程中同時(shí)采用了曲面造型,特征造型和實(shí)體造型幾種方法,先由型值數(shù)據(jù)生成樣條曲線,再由樣條曲線掃掠生成平滑的曲面,最后通過(guò)圓整?延伸得到螺旋槳的三維模型。
  • 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
    二次開發(fā)的功能在某摩托車型的反求過(guò)程中的應(yīng)用,取得了良好的效果: 1 )曲線中的壞點(diǎn)可以通過(guò)調(diào)用曲線光順的模塊而得到修改,曲線的光順性大大改觀。
  • 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
    在機(jī)械設(shè)備故障診斷研究中,以pu1蒸汽風(fēng)機(jī)發(fā)電機(jī)組為研究對(duì)象,結(jié)合movex軟件開發(fā)了基于機(jī)械振動(dòng)譜圖知識(shí)的故障診斷專家系統(tǒng),同時(shí)為了更加直觀地處理譜圖曲線,另行用vc + +與matlab軟件開發(fā)一套基于曲線擬合的機(jī)械設(shè)備故障診斷知識(shí)處理系統(tǒng)。
  • 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
    通過(guò)對(duì)曲線、曲面控制變形中的變形空間進(jìn)行等距逼近的方法,我們實(shí)現(xiàn)了一個(gè)一維、二維、三維控制手段的統(tǒng)一空間變形模型,這種統(tǒng)一不但自然地解決了曲線、曲面控制變形中的采樣問(wèn)題,同時(shí)為實(shí)現(xiàn)各種空間變形提供了一個(gè)統(tǒng)一的數(shù)學(xué)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 )采用土壤穩(wěn)定入滲速率、坡面開始產(chǎn)流時(shí)間、土壤濕潤(rùn)鋒面下滲深度三個(gè)指標(biāo)來(lái)反映坡耕地土壤入滲影響(土壤性質(zhì)、土壤初始含水率、地面坡度、降雨強(qiáng)度、積水深度、水土保持耕作措施等)因素效用大小,建立了各因素與三個(gè)指標(biāo)的關(guān)系模型,詳細(xì)分析了不同水土保持耕作措施強(qiáng)化土壤入滲的影響,其中等高耕作作用最為顯著,其次是人工掏挖和人工鋤耕。
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