精度表 的英文怎麼說
中文拼音 [jīngdùbiǎo]
精度表
英文
accuracy table-
Optimized association rules are permitted to contain uninstantiated attributes. the optimization procedure is to determine the instantiations such that some measures of the roles are maximized. this paper tries to maximize interest to find more interesting rules. on the other hand, the approach permits the optimized association rule to contain uninstantiated numeric attributes in both the antecedence and the consequence. a naive algorithm of finding such optimized rules can be got by a straightforward extension of the algorithm for only one numeric attribute. unfortunately, that results in a poor performance. a heuristic algorithm that finds the approximate optimal rules is proposed to improve the performance. the experiments with the synthetic data sets show the advantages of interest over confidence on finding interesting rules with two attributes. the experiments with real data set show the approximate linear scalability and good accuracy of the algorithm
優化關聯規則允許在規則中包含未初始化的屬性.優化過程就是確定對這些屬性進行初始化，使得某些度量最大化.最大化興趣度因子用來發現更加有趣的規則;另一方面，允許優化規則在前提和結果中各包含一個未初始化的數值屬性.對那些處理一個數值屬性的演算法進行直接的擴展，可以得到一個發現這種優化規則的簡單演算法.然而這種方法的性能很差，因此，為了改善性能，提出一種啟發式方法，它發現的是近似最優的規則.在人造數據集上的實驗結果表明，當優化規則包含兩個數值屬性時，優化興趣度因子得到的規則比優化可信度得到的規則更有趣.在真實數據集上的實驗結果表明，該演算法具有近似線性的可擴展性和較好的精度The results of test demostrate both estimation and accuracy of solving model achieved satisfactory degree, so that the ballistic trajectory problem can be solved without the firing table
測試結果表明，彈道綜合系數的估計比較準確，而解算模型在精度與實時性上均達到滿意的程度，具有高度通用化的特點，並且使彈道問題的解算可以完全脫離射表進行。Based on the principles to respect believable and higher precise paleomagnetic data of blocks and to pay attention to the similarity of paleo - biogeography and the coordination of tectonic evolution, the paleomagnetic data of chinese continental blocks and adjacent areas for paleozoic and triassic were collected, the chinese continental blocks were laid up on the reconstruction of global paleo - continents with similar scale
摘要在尊重比較可靠的、測試精度較高的地塊古地磁數據，重視生物古地理與地質構造演化史的相似性和協調性等原則的基礎上，筆者編制了中國大陸及鄰區各陸塊古生代和三疊紀的古地磁數據表，並採用類似的比例尺，將中國各陸塊放到相應的全球古大陸復原圖上去。The bovine seminal plasma proteins bind to epidid - ymal spermatozoa via their interaction with choline phospholipids after ejaculation. in addition, they interact with bovine sperm capacitating factors, heparin and hdl
射精后， bsp蛋白結合在精子表面磷脂酰膽堿位點，並與產道中獲能因子肝素、高密度脂蛋白（ hdl ）結合。They not only inherit the advantages of bezier curves and b - spline curves, also can be used to represent straight lines precisely and some remarkable transcendental curves precisely, such as circular arc, ellipse, cardioids and twisted pair line etc. especially, the uniform t - b - spline curve of three degrees is smoother than b - spline curve and c - b - spline curve of the same order
此外由於它們還具有三角函數的優點，故既可以精確表示直線段、二次多項式曲線段又可以精確表示圓弧、橢圓弧等二次曲線以及心臟線、雙紐線等超越曲線。特別地， 3次均勻t - b樣條曲線曲面比同階均勻b樣條（ c - b樣條）曲線曲面具有更高的光滑度。Increased expressiveness combination of chenille embroidery with multi - color flat embroidery has realized high precision and higher value - added mixed embroidery
多彩的表現鏈式和多色平繡的組合，創造出高精度，高附加價值的混合刺繡。A lot of simulation results show that the sofia has the high convergency rate, accuracy and good stability. it can be conveniently applied to engineering practice
大量的模擬結果表明該演算法具有收斂速度快、辨識精度高、穩定性好，便於工程應用。The datum plane of system is made certain and its veracity is proven by experiment. the result indicate that the laser rotating check system has very high precision and sensitivity and display the check result with number
得到的實驗數據表明：本課題研究的掃平儀檢測系統具有很高的檢測精度與靈敏度，並實現了檢測結果的數字顯示，在掃平儀的生產中具有一定的實用價值。Abstract : with differential calculus and principles of precision analysis a mathematics formula on spring being out of shape error and relative factors error is derived, and given a simple method of dynamometric spring precision design
文摘:應用全微分方法及精度分析原理，推導出彈簧變形誤差與各相關因素誤差之間的數學表達式，提供了一種測力彈簧精度設計的簡便方法。The inversion results of synthetic magnetotelluric sounding data are ideal, which indicates that the algorithm possesses advantages of expediting convergence, avoiding earliness and improving precision, and can be used in mt data analysis
對各種類型的大地電磁測深理論曲線進行計算，結果表明：採用實數編碼混合遺傳演算法進行反演具有收斂速度快、解的精度高和避免出現早熟等優點，可用於大地電磁資料解釋。The key production technology of aluminum sheets are thickness accuracy and shape control, its main application products are drink cans 、 automobile parts, electrolytic condenser 、 small tube for condenser 、 drum for laser printer
鋁合金板材之關鍵生產技術為提高板厚精度及形狀控制技術，應用製品主要有飲料罐、汽車零件、電解冷凝器、小斷面冷凝管、雷射印表機感光輥筒。A highly efficient numerical algorithm by using multi - grid method ( mgm ) is introduced to solve the three dimensional field distribution in the present paper. formulae of the restriction and prolongation in mgm computation is deduced, and a 3d program of mgm is accomplished, which can solve the field distributions in electron optical systems for various electrostatic lenses. the 3d field distribution in an electrostatic concentric spherical model is tested with mgm algorithm and an algorithm based on finite difference method ( fdm ) respectively. comparing these two results in view of computational efficiency and computational accuracy, it appears that mgm is superior to fdm in solving electrostatic field distribution for the electron optics problem. this paper shows that the 3d field computation using mgm greatly improves the computational efficiency of field distributions in electron optical systems and shortens the computational time
本文將一種高效率的數值計算方法? ?多重網格法引入三維靜電場分佈的計算，多重網格法利用限制和延拓可迅速求得滿足精度要求的場分佈.研究了求解各種靜電透鏡電子光學系統三維場分佈的多重網格法程序，驗算了靜電同心球模型的三維場分佈.通過與目前在場計算中常用的有限差分法進行比較，可以看出多重網格法的計算效率和計算精度優于有限差分法.本文表明利用多重網格法計算三維場大大提高了場分佈的計算效率，縮短了計算時間，因此為后續計算打下了良好的基礎Our company was established in 1982, possesses finish machining equipment numerically controlled machine, engine lathe, high precision instrument lathe, thread - rolling machine, hobbing machine and milling machine etc, specializes in producing textile machinery fittings, hydraulic fitting pipe, automobile and moto - rcycle fittings and plastic fittings etc. the products have been sold all over china and sold to as far as middle east, southeast asia etc
我公司創建於1982年，擁有數控車床，普通車床，高精度儀表車，滾絲機，注塑機，磨床，鋸床，銑床設備等各種精加工設備， ，專業生產液壓管接頭，紡織機械配件，汽摩配件及塑料配件等，產品銷往全國各地，並通過外貿公司遠銷海外市場。To sum up, tested and validated by data sets of shenzhou iv unmanned spacecraft and precise orbit ephemeris, the algorithms presented in the thesis can improve orbit accuracy and reduce random noise considerablely. derived conclusions have important value for reference, and lay the firm technological foundation for future applications
總之，經過神舟四號飛船實測數據計算和精密星歷檢驗，表明本文提出的各種定軌方法可以較好的提高定軌精度，減少隨機噪聲，所得出的結論對于實際應用具有重要的參考價值，並為將來的應用奠定了堅實的技術基礎。Based on the principle of afm ’ s mechanism, with the needs of 6 - dof parallel robot with cubic millimeter movement space and nano - scale movement accuracy, and considering the openness, scope bound and reliability of the adjustment device, this paper build a super - exact device for the measurement of nona - scale surface
本論文在借鑒原子力顯微鏡原理的基礎上，結合具有立方厘米級工作空間、納米級運動解析度的6 - dof並聯工作臺的實際測量需要，綜合考慮了系統的開放性、掃描范圍和調節裝置的可靠性，研製了面向納米測量定位的高精度表面納米級形貌測量樣機。Building construction - tolerances - expression of dimensional accuracy - principles and terminology
建築物結構.公差.尺寸精度表述法.原則和術語According to the mathematic modeling principle of physical problem, the error of lattice boltzmann model is analyzed in chapter 3. the nonlinear deviation term from the navier - stokes equation is given, and the main model coefficients, such as speed of sound, viscosity and so on, are verified by numerical computation, the results show that the lattice boltzmann method has second order precision in space and in time which satisfy the engineering application, whereas, the compressible effect ca n ' t be neglected along with mach number increasing, and must be reduced or eliminated
其次，按照物理問題數學建模的原則，對格子法的誤差進行了分析，給出了格子bgk方程再現navier - stokes方程時的壓縮誤差項，並數值驗證了格子模型的聲速及粘性系數等相關參數的精度，表明格子模型盡管具有時空二階精度，能滿足工程計算的要求，但隨著mach數增大，壓縮誤差逐漸成為主要誤差，必須予以消除。The claim has been made upon the results that the wmt method should be used in the area near the vertical, while the phase difference method in slant beams and a rule has been given to select among those two methods according to the " effect value " on condition the depth is known for the consideration of improving the measurement precision, this paper studies the factors which affect the toa measurements, and three expressions of precision has been introduced as to applications of phase difference method, this paper introduces an automatic hunting method based on amplitude power to get the range of echo arrival
採用方差分析的方法，使用重復海試數據對wmt法和相位差法的優劣進行了分析，指出了垂直附近應該使用wmt法，而傾斜波束應該使用相位差法；給出了在深度真實值已知前提下wmt法和相位差法使用的判決準則，即根據效應值的大小來選擇。本文從提高測量精度角度出發，分析並驗證了影響toa測量精度的因素；給出了三種精度表示。在應用相位差法時，引入了一種基於幅度能量的區間自動搜索方法；實驗表明該方法能很好地確定回波到達的大概時間范圍。The primary and secondary mirrors of the schwarzschild optics were fabricated in our institute and measured using zygo mark iv interferometer. figure errors were observed in both primary and secondary mirror of 5nm ( rms ). these magnitudes are very small at visible wavelength but sufficient to cause significant degradation in the wave - front quality of the schwarzschild optics in extreme ultraviolet ( euv ) wavelength
利用zygomark干涉儀檢測的schwarzschild微縮投影物鏡主、次鏡面形精度表明，對可見光工作波段已具有足夠高的面形精度，均為5nm （ rms ） ，但在euv （ extremeultraviolet ）波段，將給schwarzschild微縮投影物鏡帶來嚴重的波面誤差。People often use the process of clay sand to produce varieties of casting which are required standard figure, precise dimensions, smooth surface and high productivity in some industry for example vehicle, tractor, internal combustion engine
在汽車、拖拉機、內燃機等行業中凡是對外形規范化、尺寸精度、表面光潔度要求高的生產量大的各類鑄件，採用粘土砂的生產工藝是目前國內外公認的主要手段之一。分享友人