度量不變量 的英文怎麼說

中文拼音 [dùliángbùbiànliáng]
度量不變量 英文
metric invariant
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 不 : 名詞[書面語] （剁物所用的木墩） a block of wood
  • 度量 : 1. （計量長短） measure; metric; mensuration 2. （寬容人的限度） tolerance; magnanimity
  1. Results show when velocity of flow remains unchanged in the onflow area and openness of the tube is changed, then resistance coefficient changes obviously

    實驗結果表明：在湍流區域內流速（量）不變時，改變管件開度，阻力系數變化較顯著；改變流量，管件開度不變時，變化不大。
  2. Recent researches extend the single axis approach to recover unknown rotation angles from uncalibrated image sequence based on a projective geometry approach. but these methods limited by the expense of computing fundamental matrices and trifocal tensors or of the nonlinear optimization involved in computing epipolar tangencies

    因此，探索一種有效而簡單的演算法，求解單軸旋轉運動中的不變量和旋轉角度，是當前計算機視覺技術中的一個熱點研究課題，也是本文的研究目的和出發點。
  3. The result indicates that in the case of constant content of asphalt, marshall stability, compression strength, rupture strength, compression modulus and rupture modulus of cement emulsified asphalt concrete would increase along with the increase in cement content ; in the case of constant content of cement, these index values would decrease along with the increase in asphalt content ; while with the increase of coarse aggregate, rupture strength and rupture modulus of the concrete would increase conspicuously, yet compression strength and compression modulus would have a little change

    試驗結果表明：在乳化瀝青含量不變時，隨著水泥用量的增加水泥乳化瀝青混凝土的馬歇爾穩定度、抗壓強度、抗折強度、抗壓回彈模量、抗折回彈模量隨之增加；在水泥用量不變時，隨著乳化瀝青用量的增加相應的力學指標呈降低趨勢；礦料級配中粗集料含量增加后，混合料的抗折強度和抗折回彈模量有明顯增加，但抗壓強度和抗壓回彈模量變化不大。
  4. But they are very sensitive to image noise and points delocalization error. in order to use the invariants, the local geometric constr aint must be added

    但同時，由於興趣點的局部灰度差分不變量對噪聲及點位置偏差很敏感，所以在做實際圖像匹配時必須加上局部幾何限制。
  5. In recent years, the excellent properties of moments and moment invariants computed from two - dimensional or three - dimensional shapes have aroused great attention, and researchers explored a wide range of moment applications

    近年來，由二隹和三維形狀所求取的矩及矩不變量的優良特性已引起了圖像界人士的高度重視，並開發了大量的應用。
  6. 3 prolong the mixing time for 3060 seconds. 4 the concrete mixed with this agent must be strengthened maintenance and the time of wet maintenance should be no less than 14 days

    用水量不變，可增加塌落度以上，減少泌水離析，顯著改善施工性能，便於插搗密實。
  7. Under the condition of constant phosphorus mass flow rate, the smog exit temperature would increase slowly while other parameters would decrease with increasing excess air coefficient

    在燃磷量不變情況下，最高燃燒溫度、壁面最大熱流和平均熱流均隨過剩空氣系數的增大而減小，但煙氣出口溫度緩慢增加。
  8. Two important characteristics of the fractal are self - similarity and dilation symmetry. the fractal dimension is a basic parameter that describes the fractal quantificationally

    分形維數是定量描述分形的基本參量，是標度變換下的不變量。
  9. Temperature to which air must be cooled at constant pressure and water vapor content in order that it shall be saturated with respect to water

    空氣在氣壓及水氣含量不變的條件下，受冷至相對於水飽和時的溫度。
  10. 3. 2. 1. 4 ) which was prepared by precipitation of the water extract of the culture of aspergillus niger with ammonium sulfate and desalted by sephadex g - 25, and was further fractionated by two steps of deae - toyopearl 650m and one step of poros 20pi chromatography. the other was a p - glucosidase ( ec. 3. 2. 1. 21 ) which was prepared by the above g - 25 fractions and was further fractionated by two steps of deae - toyopearl 650m chromatography. the specific activity of the endoglucanase with sodium carboxymethyl cellulose was estimated to be 433. 38 hj / mg

    -葡萄糖苷酶對水楊素的比活力為597 . 12iu mg ，並對其專一，不能水解棉花和羧甲基纖維素鈉；分子量為117 . 5kda ，加dtt後分子量不變；該組分最適ph和溫度分別為4 . 5和70 ，在ph5 . 0 、 50下對水楊素鈉的米氏常數km為3 . 73mg ml ，最大反應速度vm為0 . 088mg葡萄糖（ ml ? min ） ；與文獻中從黑麴黴中分離的-葡萄糖苷酶比較后發現，該組分是一個新的-葡萄糖苷酶。
  11. In consideration of the large feature dimensions of the wavelet moment invariants, we first choose a set of better features by combining divergence with sequential forward selection and this can be an off - line computation process

    針對小波矩不變量特徵維數比較多的情況，本文採用結合離散度和順序前進法的特徵選擇方法，先離線選取一組較優特徵量。
  12. To insure more densification but deformation of glass beads, the green density should be increased, and the burnout temperature of binder should be below the toplimit of transformation temperature

    為保證絕緣子獲得較高緻密度而不變形，應盡量提高生坯密度，溫度同時排蠟應低於該種玻璃的轉變溫度上限。
  13. This paper realized the aumotic detection of assembling angle position of intravenous needles by image technology. during the study, this paper designed light with a piece of white paper and halogen lamp to take the images of intravenous needles ; analyzed in detail hu moment invariants of digital image, amended i7 and chose i1 ~ i5 and amended i7 as eigenvector groups ; put forward a method of angle recognition based hu moment invariants ; the methods above were employed by vc + +, and a prototype system of software is compiled

    在輸液針的角度識別的研究過程中，用鹵素燈和白紙構建了一個漫反射體作為輸液針圖像獲取理想的光源；分析了矩不變量的不變性，修正了矩不變量i _ 7 ，選用了i _ 1 i _ 5和修正後的i _ 7來提取輸液針圖像的特徵；針對輸液針圖像的特點，提出了一種基於矩不變量的角度識別方法；在開發平臺vc + + 6 . 0上編寫了一個輸液針角度識別的軟體原型系統，實現了其演算法。
  14. But unit tests can be thorough enough that we can reasonably expect them to catch most violations of the invariants

    但單元測試的檢查已經足夠徹底，使我們能夠適度地期望它們捕捉到不變量的大多數不合法錯誤。
  15. 3. according to the spline theory we presented a shape matching algorithm based on the similarity matrix of curvature and torsion values of 3d curve, we reduced the 3 - d curve matching task into a 1 - d string matching problem, which makes the matching more veracious and can be used on the 2d or 3d curve matching. in order to reduce the cost of matching, we used multiple scale technique

    依據樣條曲線的基本理論，研究了基於b樣條的輪廓曲線的匹配方法，給出了由輪廓曲線不變量曲率和撓率構造的相似不變量的選取以及基於相似矩陣的匹配演算法，並對該演算法的時間復雜度作了估計，同時，將多尺度技術引入到物體輪廓的匹配問題中。
  16. Carbon nanotubes and polycyclic aromatic hydrocarbons ( pahs ) are important research objects of structural chemistry. hexagonal system, which is used to represent mathematicaliy pahs in organic chemistry, is developed perfectly in this century. while the theories concerning different topological invariants and parameters on hexagonal systems tend gradual1y to achieve great successes, the performance of the calcu1ations by pen and paper is still rather tedious, or even impossibie, when the size of molecules increases

    碳納米管和多環芳烴（ pah ）是結構化學的重要研究對象，從圖論角度描述有機化學中多環芳烴的六角系統在近代得到了很大的發展，對六角系統的各種拓撲不變量和一些參數的計算已趨完善或正在逐步完善。
  17. As a kind of topological conjugate invariant, the topologic entropy can perfectly describe complex behavior of dynamical system. therefore it plays a very important role in the study of dynamical system

    拓撲熵作為一種拓撲共軛不變量，它對動力系統的混亂程度有著極好的數量描述，因此在動力系統的研究中占據著十分重要的位置。
  18. An evolving model that can construct small - world networks and scale - free networks is employed to introduce nonlinear rewiring methods with keeping the number of nodes and edges invariable

    摘要提出了一個能構建小世界網路和無標度網路的演化模型，這演化模型保持節點規模和邊數量不變，引入邊非線性擇優重連方法。
  19. Measurements were made of system pressure, mass flow rate of steam, air, and cooling water, temperatures of condensing flow and cooling flow, and the water level of boiler. the major phenomena observed in the present experiment are similar to those by other investigators. the mass flow rate of steam, the system pressure and air content are the most important factors affecting steam condensation

    實驗結果表明，維持二次側冷卻水流量不變，無論對于純凈蒸汽還是含有空氣的蒸汽冷凝，隨著蒸汽發生器加熱功率的增大（即蒸汽流量增大） ，有效冷凝段長度將加長；當蒸汽中含有少量空氣，有效冷凝段長度也會明顯加長；提高系統壓力，有效冷凝段長度將縮短。
  20. When the contents of other blending components were fixed, with the content increasing of psmn, izod impact strength of ppmn was enhanced gradually. when the content of montmorillonite was 2wt %, max value of 36. 24kj / m2 was achieved

    在其它共混組分含量不變的條件下，隨psmn填充量的增加，復合材料缺口沖擊強度逐漸提高，在蒙脫土填充量為2wt時達到最大值36 . 24kj m ~ 2 。
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