曲線近似 的英文怎麼說

中文拼音 [qūxiànjìnsì]
曲線近似 英文
curve approximation
  • 曲 : 曲名詞1 （一種韻文形式） qu a type of verse for singing which emerged in the southern song and ji...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 近 : Ⅰ形容詞1 （空間或時間距離短） near; close 2 （接近） approaching; approximately; close to 3 （親...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  • 近似 : approximate; similar; approach; approximation; roughness; propinquity
  1. The time - frequency curve of stern scatterer is analyzed. furthermore, high quality images are obtained by identifying the regions which are uniform in frequency. chapter 4 exposits the method of optimal time selection for ship isar imaging in detail

    本章分析了船尾處特顯點的時頻分佈曲線，並選擇了時頻曲線中頻率近似不變的時間段得到艦船圖像，其成像質量有了較大的提高。
  2. The relation between the chlorinity and porosity may be approximated by a hyperbola.

    含氯量和孔隙度之間的關系圖式也許近似於一條雙曲線。
  3. Any continuous curve can be closely approximated by a series of small parabolic segments.

    任一連續曲線可以借一系列很小的拋物線線段較精密地近似表示。
  4. This dissertation emphasizes on the creation of image space, the author present a display system in which screen moves with a sinusoidal velocity profile to create image space. this paper uses linear approximation to make the system display homogeneous graphic and analyzes worst - case positional error due to linear approximation

    本論文重點分析了顯示單元中成像空間的構造，提出屏幕按正弦曲線運動的方式來構造成像空間，用線性近似的方法得到均勻的圖像，並分析了由於線性近似帶來的最大屏幕位置誤差。
  5. Based on the extensive studies of subtilisin - like protease ( prl ) of metarhizium anisopliae, extracellullar serine protease is suggested to be a key enzyme involved in the fimgal penetration to invertebrates. the investigation of serine protease in the nematode infected by owvtl may help to understand the mechanism of nematophagous fimgi as biological control agents. a 3l kda serine protease was isolated and purified from the liquid culture of h rhossiliensis owvtl challenged with nematode panagrellus redivivus

    本研究利用線蟲誘導下owvt - 1菌株液體發酵，通過粗分級分離、離子交換層析和凝膠過濾層析分離提純了一個分子量為31kda的絲氨酸蛋白酶，生物學測定表明其對大豆胞囊線蟲二齡幼蟲具有致死作用，同時測定了該酶理化特性，酶活力在75附近酶活力最高，隨著ph的增加酶的穩定性升高，與膽堿酯酶具有相似的ph曲線，對特異性底物aape （ suc - ala - ala - pro - glu - pna ）具有作用， ssi和ci - 2抑制該酶的活性。
  6. The fundamental ideas and methods of this paper are also illuminated in this chapter. in chapter two, a one - dimensional and semi - closed shallow sea mode is studied. the approximate analytical expressions of the water level at the top of the bay induced by the nonlinear interaction between the storm surges and the astronomical tides are obtained by using the perturbation method

    在第二章里，研究了一維半封閉水域中的非定常風暴潮與天文潮非線性相互作用的問題，用攝動方法求出了具有實際意義的海灣頂部增水水位的一階近似解析表達式，並給出了增水過程曲線。
  7. This paper puts out the edge shapes curvilinear equations, of the edge shapes of double circular gear hob, and analyzes the tooth surfaces characterist. it also points out that the gear hob is a kind of approximate shape building cutting too ls in the whole course of using

    本文提出了直槽雙圓弧齒輪滾刀刃形曲線方程式，並進一步分析了該滾刀的齒面特性，指出該滾刀從整個使用過程看，是一種近似造型的刀具。
  8. Abstract : this paper puts out the edge shapes curvilinear equations, of the edge shapes of double circular gear hob, and analyzes the tooth surface ' s characterist. it also points out that the gear hob is a kind of approximate shape building cutting too ls in the whole course of using

    文摘:本文提出了直槽雙圓弧齒輪滾刀刃形曲線方程式，並進一步分析了該滾刀的齒面特性，指出該滾刀從整個使用過程看，是一種近似造型的刀具。
  9. Abstract : a new waveguide which can change the wide wall of a rectangular waveguide into a symmetric arc wall is named as a cam - rectangular waveguide. comparing to sectoral waveguide, the new waveguide has the same voltage characteristics and is easier to be produced and fixed. an approximate formula of the dominant mode fields and the normalized conductance of a longitudinal resonant slot cut in the curved wall of a cam - rectangular waveguide are given. a resonant slot linear array in c & x band is designed, in which the slot voltage distribution is equiphase and the input is matched. the input voltage stationary ware ratio and the h - plane pattern of the antenna are measured. the experimental results show the conformance with theoretical results

    文摘:把常用的矩形波導一個寬面改成圓弧形構成的波導稱為圓突-矩形波導.這種波導與扇面波導相比：電性能相當；波導管結構更加簡單，容易加工，便於安裝.文中給出圓突-矩形波導中主模場，圓曲面上縱向槽歸一化諧振電導近似公式.設計了c和x波段波導曲面縱向諧振縫隙線陣，縫隙電壓相位為同相分佈，輸入端匹配.實際測量了天線輸入端電壓駐波比和h面方向圖，理論與實驗相吻合
  10. A new waveguide made of changing a wide wall of a rectangular waveguide to a uniform curved wall is called conformal waveguide. a kind of expression of approximate solution for domain mode of the new waveguide, including symmetric, unsymmetric arc, parabolic arch, hyperbolic arch, elliptic arch, etc., is constructed by using boundary condition of mental waveguide, variational method and boundary element method. by using the equivalence principle, an approximate calculating formula for equivalent resonant conductance of a narrow longitudinal halfwavelength slot cut in the curved wall of the unsymmetric arcrectangular waveguide is derived, and the result is shown. although this solution is approximate, it can solve the problem in designing the slotted antenna of such conformal waveguide

    把矩形波導一個寬面外突成均勻曲面構成的新波導統稱為共形波導.利用金屬波導邊界條件、變分法、邊界元素法構造這種新波導中主模場的一種近似解表達式，包括曲面橫截線為對稱、非對稱圓弧，拋物線弧，雙曲線弧，橢圓弧等.然後根據等效原理，推導非對稱圓弧矩形波導曲面上窄的縱向半波長縫隙的等效諧振電導的近似計算公式，給出計算曲線.這種解雖然是近似的，但卻能解決這類共形波導縫隙天線的工程設計
  11. During its lifetime, the xd recorded a total of 664 triggers. the research team identified and recorded lightcurves of near one hundred solar flare events data taken during half of the orbit when the shenzhou - ii orbiter faces the sun and 30 candidates of gamma ray bursts. many of these observations were verified by similar results taken by other orbiting satellites

    探測器在運作期間，共錄得664次撞擊，研究小組由此識別並記錄了近百次太陽耀斑的變光曲線當神舟二號在軌道上面向太陽時和約30次伽瑪射線爆發，大部分觀測結果跟其他人造衛星所測得的類似。
  12. The normalized factorial moments ( nfm ) show good scaling properties in isotropical partition of phase space ; the nfm ' s projected into three directions versus the. partition. number appear, to be saturated curves with similar in scaling behavior ; and the three hurst exponents are very close to unity. the levy - stability holds for the q = 2 ~ 5 order moments in 3 - dimensional phase - space

    發現：三維歸一化階乘矩（ nfm ）的分佈呈現出很好的標度特性；階乘矩在各個方向上的一維投影呈現出彼此十分相似的飽和曲線，且特徵參量hurst指數都接近於1 ；高維相空間各階階乘矩的分佈滿足l vy穩定性的要求。
  13. The approximate polynomial method was based on neuber ' s method, the cyclic stress - strain responses and neuber ' s rule were treated as probabilistic curves, and the statistic characteristic was obtained from the approximate polynomial. the method is fast and easy for engineering application

    近似的多項式擬合法在諾伯法的基礎上，將循環應力應變曲線和諾伯雙曲線視為概率曲線，通過建立近似多項式的方法，求得局部應力應變的統計特性，快速簡便，適合工程應用。
  14. The behaviour of some materials, notably structural steel, can often be approximated by a stres-strain curve.

    某些材料的受力狀態，比如值得注意的鋼結構，通常可以近似地用應力--應變曲線來描述。
  15. In chapter 3, some theories of approximation are given from the point of mathematics and from physics

    第三章分別從數學的角度和物理的角度闡述了流固物體曲線拉伸流動問題求解的近似理論。
  16. Imported from germany, elevator kiln produce high frequency, low power loss material : nh2c equivalent to tdk pc44 and high initialpermeability material : nh13a ui 13000. advanced controlling technique of internalatmosphere and temperature curve to ensure its excellent performance, their high quality and stable character will meet telecom and networkcustomers strictly demand. we specialized in manufacturings. m. p. s transformers, inductors

    公司引進德國鐘罩爐設備，採用先進的爐內氣氛控制方法和特殊的氣氛曲線，生產高頻低損耗功率鐵氧體nh2c材料相當于tdk pc44及高磁導率鐵氧體nh13a材料ui 13000 ，充分滿足客戶對網路通訊用磁芯在性能和穩定性上近似苛刻的要求。
  17. In the section 2, firstly based on the diffusion approximation theory, the temporal characteristics of the reflectance and the transmittance were theoretically analyzed in turbid tissues ; secondly, the curves were simulated that the intensity and the pulse shape of the time resolved reflectance and transmittance versus the absorption a, the scattering s and the anisotropy coefficient g in two different boundary conditions : semi - infinite turbid media and homogeneous slab ; at last, the optical properties can be derived from the curves ; in the section 3, the conditions of ultra short laser pulses of different pulse - width and shapes has been theoretical analyzed and calculated, besides, the simulated the curves of the intensity and pulse shapes of the reflectance and transmittance in a homogeneous slab are obtained for use and future studying

    第二章中首先根據漫射近似理論對超短脈沖在以生物組織為典型的混濁介質中傳輸進行了理論分析，然後對兩種邊界條件下產生的漫反射、漫透射光脈沖強度和形狀隨各光學特性參數的變化情況進行了數值模擬，最後得到了混濁介質的光學特性參數與漫反射、透射脈沖強度與形狀的關系曲線。第三章對不同形狀和脈寬的脈沖光源入射到混濁介質中產生的漫反射、漫透射脈沖的強度和形狀進行了理論分析和數值模擬，並將高斯脈沖與方波脈沖情況進行了對比，得到了各種情況的漫反射、漫透射脈沖強度、形狀與各光學特性參數的關系曲線，這對從分析脈沖形狀中提取介質的光學特性參數的信息有重要的意義。
  18. Some properties of the optimal path of trust region methods are shown, and the relationship between dogleg path and optimal path is analysed. this can be used to derive better approximate algorithms for solving trust region subproblems

    本文描述了信賴域方法最優曲線在二維子空間內投影的幾個性質，分析了幾種信賴域折線法與該投影的關系，為推導更好的求解信賴域子問題的折線近似提供理論依據
  19. Then we get some results : the curves of wavelength tuning properties are shown as a near - linear dependence on the applied voltage, and the tuning rate is larger with the duty - cycle decreasing when the voltage applies on the dual domain ; on the contrary, the - tuning rate is smaller with the duty - cycles decreasing when the voltage applies on the single domain

    得到一些對實驗有指導意思的結果：得出電壓和波長調諧曲線近似呈線性關系，在雙疇加電壓情況下，占空比越小調諧速率越大，而在單疇加電壓情況下，占空比越小調諧速率也越小，剛好與雙疇加電壓的結果相反。
  20. According to three dimension braided composites for braided technology - four - step and technology - two - step procedure, and with reference to theories of braided fabric geometry and force models, a geometric model is built. in this model, the cross - section of thread is described as a circle and thread path as a cubic b - spline. braided - fabric structures in three dimensions are displayed by using solid - modeling techniques

    本文三維編織物根據四步法和二步法編織工藝，從紗線的力學模型出發，建立了以圓形近似描述紗線的截面形態，以三次b樣條曲線近似描述紗線的屈曲形態的織物空間幾何模型，利用計算機三維實體造型技術，分別建立各自的編織物實體模型，用來模擬織物內部各紗線的空間位置，完成織物結構模擬。
分享友人
分享到 Line

分享到臉書