凹線 的英文怎麼說

中文拼音 [āoxiàn]
凹線 英文
chamfer
  • 凹 : 凹名詞（凹陷的地方, 用於地名） low-lying area; depression （used in place names）
  • 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...
  1. The ancient greeks used lenses or concave mirrors to concentrate the sun ' s rays and burning glasses were also used by mexican aztecs and the chinese

    古希臘人使用透鏡或凹面鏡聚集太陽光線並且這種方法也被墨西哥阿芝臺克和中國人使用。
  2. The graph of a concave function is always below its tangent.

    一個凹函數的圖象總在它的切線的下方。
  3. A parabolic concave mirror can converge parallel light rays to its focus, and also collimate light rays that pass through its focus

    拋物面凹鏡會把平行而來的光線聚集在一點焦點，亦會把源自焦點的光線平行向外反射。
  4. Especially, we implement " concavity " methods in the linear damping case, m = 2

    特別地，利用凹方法考慮線性阻尼情形即m = 2 。
  5. With the concavity and integrability of sublinear terms near zero, the symmetry results for a class of sublinear elliptic equations are given by making use of the moving - plane method

    本文利用次線性項在零點附近的凹性和可積性，用移動平面法給出了一類次線性橢圓方程正解的對稱性
  6. Copper wires are carried back from the rotating terminals to the individual sliprings along grooves in the outside of the shaft.

    銅導線從旋轉凸塊沿著軸外部的凹糟引回到各個滑環上去。
  7. In spermatogenous cell, we could find dilated cytolemma, dilated nuclear membrane and fused crista of mitochondria. most of the sperm ' s cellular membrane dissolved and broke down into pieces. the central granule and mitochondrion showed little dissolving

    久效磷可以使金魚精子細胞質膜溶解，出現間斷性斷裂;有的精子頭部變形，頂部出現凹陷;少量精子頸部中心粒復合體溶解;精子頸部線粒體有溶解現象，精子尾部的膜結構斷裂。
  8. Formula to evaluate translation of the tooth - surface and the equation to describe the generatrix of the negatively cambered sooth - surface were derived, respectively

    分別推導得到齒面平移距離和內凹齒面母線方程的計算公式。
  9. Under a row of five coiled spring housebells a curvilinear rope, stretched between two holdfasts athwart across the recess beside the chimney pier, from which hung four smallsized square handkerchiefs folded unattached consecutively in adjacent rectangles and one pair of ladies grey hose with lisle suspendertops and feet in their habitual position clamped by three erect wooden pegs two at their outer extremities and the third at their point of junction

    那是一排五個家用螺形彈簧按鈴，下面，在煙囪那凹進去的間壁兩側的兩個鉤子之間，彎彎地橫系著一根繩子，上面掛著四塊對折的小方手絹：一塊挨著一塊，彼此並不重疊，呈長方形。另外還有一雙灰色長統女襪，襪幫是用萊爾棉線25織的，腳脖子以下是通常的樣式。
  10. Persons with physical handicaps : improve the access and related facilities in church, service building, retreat houses, pastoral centres and all church organizations for those with disabilities, e. g. construction of slopes, elevators, toilets for people with disabilities, braille bibles, hymn books and parish newsletters, earphones for the hearing impaired to listen to homilies during mass and sign language interpreter during liturgies

    傷殘人士：改善通道及有關設施，以加強傷殘人士對社會的參與，例如：聖堂服務大樓避靜所牧民中心以及各教會機構應提供傷殘人士適用的通道及設施斜路凹凸紋膠條的路面凸點字標記可供輪椅出入的升降機洗手間凸字聖經歌書堂區通訊以及為弱聽人士而設的耳機系統輔助神父講道的無線調頻系統等。
  11. In the 20th century a number of security features, ranging from embedded metal threads to intaglio printing, came into use

    到了20世紀，由內藏保安線以至凹版印刷技術等防偽方法也陸續面世。
  12. The disquisition includes choice of algorithm, accomplish of algorithm, collection of learning sample, parameter of net, shortcoming of bp algorithm, extraction and reduction form line etc. referring to shortcoming of traditional bp algorithm, a modified learning factor with adaptation is introduced. because of every different font has robust, the way based chain coded and knaggy feature is used. a bizarre sample feature database is constructed for speeding up modified bp learning and classification

    本文對人工神經網路理論進行了研究，探討了網路形式及演算法的選擇、演算法的實現、學習樣本的收集、網路參數選擇、 bp演算法缺陷、表格線提取、還原、生成及字元識別、還原生成等問題，並針對bp演算法的缺陷提出了和實現了改進型bp演算法，使網路學習效率提高，對不同人的不同字型字體有較強的魯棒性，採用了基於鏈碼特徵和凹凸分佈特徵的方法來抽取字元特徵。
  13. Asy model series of 2 - color line - connecting rotogravure presses

    Asy型系列2色連線凹版印刷機
  14. The dashed lines on the rotors show the locations of the recesses and how deep they are.

    轉子上面的虛線就示出了凹槽的局部位置及其深度情況。
  15. The paper concludes that the changing rate of ndvi of rain forest in tropic is the smallest, the changing curve is smooth, while the changing rate of ndvi of the deciduous broad leaf forest in warm - temperate zone is the largest the change of ndvi is the most conspicuous in winter and spring ( especially in april ) while is not conspicuous in summer and autumn by analyzing the change of ndvi along latitude using the ndvi value of different vegetation types along the same longitude. the vegetation index from warm temperate zone to semitropical zone has obvious transition, while other areas have no distinct change by analyzing the change of ndvi from temperate zone to semitropical zone to tropical zone using ndvi averagejn the same time it is concluded that the sink value in the beginning of the year 1995 is from the influence of the monsoon in east of china by analyzing the ndvi curve of several typical needle leaf forests. the relation between ndvi value and temperature is conspicuous while the relation of precipitation is less or not by analyzing the relation between ndvi and temperature and precipitation finally it can get the conclusion that the change of river area is the smallest, the change of sienna area is the greatest by analyzing two phases of tm data in 1987 and 1997 with rs technic

    利用從同一經度的不同森林類型ndvi值分析，沿緯度方向ndvi變化可得出， ndvi在冬春季變化最明顯（尤其是在4月份最大） ，而在夏季和秋季變化不明顯。利用ndvi均值進行分析，從暖溫帶到亞熱帶到熱帶的變化情況發現，從暖溫帶到亞熱帶ndvi指數形成明顯的階躍，而其它區域沒有太大的變化，同時對幾種典型的針葉林曲線分析可知其年初的凹值源自於我國東部季風的影響。利用ndvi數據分析其與月均溫度與降水的相關性得出與溫度相關性較為顯著，而與降水相關性不顯著或無相關性。
  16. The effect on display characteristic made by thermal deformations of the shadow mask is comprehensively investigated. by using the electron beam distribution automatic measurement system with a micro - deflective coil, a concave spot in luminance distribution can be get. it changes its position when the shadow mask changes its form

    本文系統全面地分析了傳統蔭罩的各類熱變形對顯示屏特性的影響，利用本文研製的電子束亮度分佈自動測試系統，附加一個微偏轉磁場，使相鄰兩電子束打在同一顏色的熒光粉條，並形成一個亮度凹點，當蔭罩變形時，凹點位置作相應的位移，以此原理跟蹤測量凹點位移量，即可得到色純漂移動態變化曲線。
  17. Hard - drawn grooved trolley wires

    硬拉制凹槽電車導線
  18. Guided by the theory of sequence stratigraphy and petroleum system using cores, lithologic log or well - logging, biostratigraphic and seismic data, adopting seismic inversion constrained to well data, digital analysis technology, basin modeling, test method and so on, and adopting an integrated study technology, aiming at lower exploration in chagan depression, this work put forward a new research thoughtfulness, technic flow and method system that is an integrated study by " looked upon sequence stratigraphy as a base, looked upon petroleum system as a integer, combing with each other closely " and tie in qualitative analysis and quantitative analysis and applied synthetically new theory, new technology and new method

    以層序地層理論和含油氣系統思想為指導，利用巖心、鉆/測井、古生物以及地震資料，採用井約束下的地震資料反演技術、計算機技術、盆地模擬技術和各種分析實驗手段等綜合分析方法，針對查干凹陷勘探程度低的特點，提出了斷陷盆地「以層序地層分析為基礎、含油氣系統為整體（系統）和二者緊密結合」以及定性與定量相結合，綜合應用新理論、新技術和新方法的研究思路、技術路線和方法體系。
  19. First, we consider an additive schwarz algorithm for the solution of ax 4 - f ( x ) 0, x when coefficient a is an m - matrix and f ' ( x ) 0. by applying the theory of weak regular splitting of matrices to the above considered algorithm, we obtain the weighted max - norrn bound for iterations. moreover, under the assumption that f ( x ) is concave, we establish monotone convergence of the considered algorithm

    本文內容如下：首先，應用加性schwarz演算法求解非線性互補問題，其中a是m陣，應用弱分解理論，我們獲得了在加權范數意義下誤差的幾何收斂速度，在f （ x ）是凹函數的假設下我們還獲得了此演算法的單調收斂性，同時我們給出此演算法的一種修改演算法，無需前面的假設，該演算法具有單調收斂性。
  20. As a new type gear transmission, double circular arc profile bevel gearing carries out its transmission by means of meshing between convex - concave tooth profile in both of the direction of tooth trace and the direction of tooth depth, so it has advantage of high load capacity, long service life, easy forming hydrodynamic oil film between teeth as well as high quality of running - in etc. therefore, more attention has been paid to its application and research in recent years

    作為一種新型齒輪傳動方式，雙圓弧弧齒錐齒輪傳動不論在齒線方向、還是在齒高方向，均為凸、凹齒廓相嚙合，因而它比一般的弧齒錐齒輪傳動的承載能力高，使用壽命長；並且在嚙合過程中兩齒面間容易形成潤滑油膜，具有良好的跑合性能，所以對它的應用和研究日益受到人們的重視。
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