正斜角 的英文怎麼說
中文拼音 [zhēngxiéjiǎo]
正斜角
英文
orthogonal rake- 正 : 正名詞(正月) the first month of the lunar year; the first moon
- 斜 : 形容詞(跟平面或直線既不平行也不垂直的) oblique; slanting; skew; bevel; diagonal; askew; inclined; tilted
- 角 : 角Ⅰ名詞1 (牛、羊、 鹿等頭上長出的堅硬的東西) horn 2 (古時軍中吹的樂器) bugle; horn 3 (形狀像...
- 斜角 : [數學] [物理學] oblique angle; [機械工程] bevel angle斜角規 miter square; bevel; bevel square; sa...
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Turret side armor and barbette armor would usually be hit at a more oblique angle, usually circa 30 - 45 degrees or more, though the very center of the barbette could be hit at near right angles
雖然炮座裝甲正中區域有可能被幾乎垂直擊中,但通常炮塔的側面和炮座裝甲被擊中時的角度會較傾斜,約30 45度或以上。This shift of barycenter is proportional to the tilt angle and is a function of the tank area and tank spacing.
重心的偏移量與傾斜角成正比,並且是容器面積和容器之間距離的函數。Moreover, aiming at the location of inclined license plate, we have proposed the algorithm based on gray changing characteristic and orientation field. in this section, we discussed in detail the application of mathematical morphology operator in rough locating objective region and introduced the theory and realization method of orientation field. then we used it to detect inclined angel of objective region, finally we can precisely locate and emendate the inclined license plate based on detection result, and so we provided the favorable foundation for segmenting character
此外針對傾斜車牌區域的定位分割問題,提出了基於灰度變化特性和方向場計算的定位演算法,其中詳細討論了數學形態學運算元在目標區域粗定位中的應用,重點介紹了方向場計算理論和實現方法,並將其應用於目標區域傾斜角度的檢測,根據檢測得到的結果進行了傾斜車牌區域的準確定位和校正,為后續的字元分割打下良好的基礎。The profit signal and noise vectors are orthogonal to each other, so the variation vector is the hypotenuse in a right triangle
有效信號適量和噪聲信號適量相互正交,所以變量矢量是直角三角形的斜邊。Disigning coolant channel on the firebox of liquid rocket engine to loxodrome ( equal - angle helix ) groove can improve firebox coolant capability greatly. because the width dimension of loxodrome groove is narrow and the depth is deep, some machining methods are incapable, such as end - milling or electrochemistry. according to the peculiarities, a cnc disk - cutter - milling method which is composed of five motion axes with four simultaneously interpolated ones is researched. because most firebox generatrix is composed of complex curves, it is very difficult to get cnc cutting program with manual means. in order to deal with the problem, the loxodrome mathematics model is studied, and an auto - programming software system is developed. the software system can generate cnc cutting program of loxodrome on many kinds of turned surface. the constriction - distension segment of firebox is the most representative workpiece. the sharp changing of its generatrix slope makes loxodrome milling difficult. with the theory analyzing and practice cutting experiment, some applied techniques, which include milling mode and direction, choosing cutter diameter and cutting start point setting, are developed. adopting the technology above, tens regular workpiece have been manufacturing. the two - year manufacture practice has confirmed the validity and feasibility of developed loxodrome coolant channel milling method. the developed technology is also worth to be referenced to other similar workpiece
將液體火箭發動機燃燒室的冷卻通道設計為斜航線(等傾角螺旋線)槽形,可以大幅度改善燃燒室的冷卻性能.斜航線冷卻槽的槽寬尺寸較小而槽深尺寸較大,所以無法使用棒銑刀銑削、電化學等加工方式.針對這些特點,提出了五軸控制、四軸聯動的數控片銑刀銑削加工方法.由於燃燒室外表面的母線輪廓復雜,手工編制數控加工程序難度大.為了解決數控加工程序的編制問題,研究了斜航線的數學模型,開發了自動編程軟體系統.使用該系統,可以生成多種母線輪廓回轉體外表面上的斜航線數控加工程序.燃燒室收斂-擴張段的母線斜率變化大,加工難度大,是斜航線冷卻通道加工的最典型工件.經過理論分析和實際切削實驗,研究了針對該類型工件的片銑刀直徑選擇、銑削方式和方向、刀具調整和起刀點的設置等多項實際的加工方案.採用上述的一系列技術,已經成功地加工了數十個合格工件.經過兩年多的實際生產過程應用,驗證了所開發的斜航線冷卻通道加工方法的正確性和可行性.這些加工技術的研製成功,對其他相似類型零件的加工亦具有參考意義In a general way, aerial image is not orthograph, most buildings exist slope angle as well as vertical lines in aerial images
一般,得到的航空影像並不是正攝影像,在影像中對大多數建築物均存在傾斜視角,且絕大多數建築物還存在垂直邊緣。Supply sintered corundum abrasive chips. over ten shapes : triangle, oblique triangle, fan, cylinder, oblique cylinder, rhombus, square, v - shape, ball shape, elliptical, etc
有十多種形狀上百個規格,如:三角形斜切三角形圓柱形斜切圓柱形扇形橢圓形正方形球形v形菱形等。Shenzhen chenggong trade co., ltd. supply sintered corundum abrasive chips. over ten shapes : triangle, oblique triangle, fan, cylinder, oblique cylinder, rhombus, square, v - shape, ball shape, elliptical, etc
有十多種形狀上百個規格,如:三角形斜切三角形圓柱形斜切圓柱形扇形橢圓形正方形球形v形菱形等。First, this method decide the skew angle of a business card image according to four border fitting lines of the business card, then a method based on block move is provided to correct image and black border is erased based on position of border near - line
該方法先檢測出名片的四條邊緣擬合直線,由四條邊緣擬合直線的傾斜角度來確定名片圖像傾斜角度,然後採用逐段整塊搬移的方法來對圖像進行傾斜校正,再根據邊緣擬合直線位置去除黑邊。While in image inclination rectification, a modified hough transform is used in vlp inclination detection and rectification
並且應用簡化改進的hough變換,通過檢測邊界線段檢測牌照傾斜角度,對車牌進行傾斜校正。The result indicates that the range of stable lean operation varies greatly for different cavity depth d and length - depth - ratio l / d, it increases with increasing d and l / d, and increases, followed by decreasing with increasing incline angle of aft wall
研究發現:凹腔深度和長深比對凹腔火焰穩定器的貧油極限影響較大,貧油穩焰范圍與深度、長深比成正比,隨後壁傾斜角的增大先增大后減小。Recall that the angles are positive if the ray has a positive slope.
記住,若光線之斜率為正則角度為正。Positive backseat : stem bevel against integral backseat
正向後座:與整體後座相對的閥桿斜角。The enlarging effect of negative inclined incidence is better than that of positive inclined incidence
負斜入射角度差的放大效果比正斜入射的效果更好。The study of this paper indicates that, the combined binarization method can keep details well and tolerate the abominable state ; the method to estimate skew angle based on radon transformation is very exact, and the distortion of corrected image is also very little ; the vlp location method based on wavelet analysis and intensity moment has a high location exactness and a soon processing time ; and intelligent character recognition machine can accomplish the function of self - adaption, self - correction, self - study, etc
本文研究表明:混合二值化方法能較好的保留圖像細節,抗噪聲能力強;基於radon變換估計傾斜角度的方法檢測角度精確,校正後圖像失真較小;基於小波分析和亮度矩的車牌定位方法定位準確率高,速度快;仿人智能字元識別器則能實現識別字元過程中的自適應、自校正、自學習功能等。Engineering drawing has always been labeled as a practical subject. a combination of geometrical, building. mechanical and electrical drawing, it relates between theory and the picture of reality. engineering drawing will provide an accurate and complete ptcture for every object tn terms of shapes and sizes. usually, it is taught using the face - to - face teaching mode even in an odl environment. due to its nature, some students may find difficulty in imagining and interpreting the drawings. however, the availability of sophisticated technology provides the opportunity for the learning of engineering drawing to be enhanced via online. a web - based system for teaching and learning engineering drawing was developed based on a constructivism model. the web - based system is tailored for several topics of engineering drawing such as orthographic projection, sectional view, isometric and oblique drawing at the secondary level. the learning strategy consists of multiple phases beginning with introduction, concept learning, engineering drawing method, application and exercises. during introduction, students will be exposed to an overview of the topic followed by learning of specific concepts. the system provides a learning environment that allows engineering students to view objects from different angles, such as third angle projection and first angle projection as well as views of plans, side and front elevations. after learning about the concepts, students wilt be guided through the various steps in drawing methods for each topic via animations and simulations. learners are able to view any section repeatedly. examples of real application of engineering drawings were also given using graphic, animations and video. to evaluate students understanding, exercises were given at the end of each session
工程制圖一直被認為是一門實踐性學科,其整合了幾何學、建築、力學、電子制圖等,從而將理論與現實圖像聯系起來,工程制圖能為每個不同形狀、尺寸的物體提供精確的、完整的圖像.通常,即使在開放與遠程教育環境中,工程制圖的教學也是通過面對面的教學模式來進行的.由於其特殊性,一些學習者可能難以想象並解釋這些圖像.然而,尖端的技術使得可以通過在線的方式加強工程制圖的學習.研究者基於建構主義模式開發了一個面向工程制圖教學和學習的網路系統.該系統適用於幾種工程制圖,例如展開圖、刻面圖、等角圖和斜角圖.學習過程包括導論、概念學習、工程制圖方法,以及應用與練習等階段.在導論階段,系統為學習者提供了專題簡介,然後是概念學習階段.系統所提供的學習環境允許工程專業的學生從三維透視、一維透視、平面圖、側立面、正立面等不同角度來觀察物體.經過概念學習階段后,系統將引導學生通過動畫和模擬學習每個專題中制圖方法的不同步驟,學習者也能重復觀察任何剖面.另外,還通過圖像、動畫和視頻等方式展示真實的工程制圖應用案例.最後,為了評價學生的理解能力,在每部分內容後面都附有相關的練習After this, we can estimate the skew angle based on radon transformation. and then we also propose a method to rectify the traffic plate with two steps
文中還提出一種基於radon變換估計傾斜角度的方法對二值化圖像進行傾斜角度檢測,以之對二值化圖像實行校正。Single - layer model is convenient to apply but the unclear relationship between radiative and aerodynamic temperatures is still a bottleneck in this field. a new method was developed to derive reliable surface heat fluxes from radiative temperature viewed from arbitrary zenith angle. aerodynamic and radiative temperatures are connected through a so - called optimum component fraction ( ocf ) parameter - the fraction of vegetation in the field of view when the two temperatures are equivalent in oblique viewing
該方法利用表面熱輻射方向性和顯熱通量都是源於土壤和植被溫度的貢獻這一共同點,發現在一定傾斜角度的觀測下,視場中植被與土壤的比例可以較好地反映植被和土壤與大氣進行湍流熱交換的貢獻率,所以稱該方法為最佳組分面積比法,用最佳組分面積比可以將任意角度下觀測到的輻射溫度訂正為空氣動力學溫度,經過地面和遙感數據驗證表明,用該方法計算的通量精度高於普通的單層模型。Numerical results are obtained for velocity, temperature and concentration profiles, variations of both nusselt and sherwood numbers under different buoyancy ratio and inclination angles of = 15 - 90. at a given inclination angle, heat and mass transfer rates decrease with heat and mass buoyancies and the buoyancy ratio b decrease from high positive values, and then increase again with the buoyancy radio b further decreasing after the velocity and transfer rates reaching a minimum
研究結果表明:傾斜角度一定,當熱浮力與物質擴散浮力共存且二浮力之比b從較高正值變化到較高負值時,流體速度和熱質傳遞速度從高逐漸變低並出現最小值,此後隨著向下浮力的增大,流體向下流動且隨| b |的增大而加速,熱質傳遞速率隨| b |的增大而重新增大。The principal contributions of this dissertation are : 1. a high fidelity and real - time rotor wake inflow model was built up. based on peters - he finite states wake theory, a new influence coefficient matrix for high speed flight was derived, the modified wake model is better suitable for the flight state with a large wake skew angle
本模型以peters - he有限狀態尾跡理論為基礎,修正了大尾跡傾斜角時的誘導速度影響系數矩陣,並結合了王氏渦流理論,導出了旋翼誘導速度垂向分量和旋轉分量的表達式,可計算平尾、尾槳和垂尾氣動中心處誘導速度各分量。分享友人