等角螺線 的英文怎麼說

中文拼音 [děngjiǎoluóxiàn]
等角螺線 英文
equiangular spiral
  • 等 : Ⅰ量詞1 （等級） class; grade; rank 2 （種; 類） kind; sort; type Ⅱ形容詞（程度或數量上相同） equa...
  • 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...
  • 螺 : 1. [動物學] （軟體動物） spiral shell; snail; conch 2. （螺旋形的指紋） whorl （in fingerprint）
  • 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. Since complicated differential and integral operations were involved in the kernel of the integral equation, we simplified the equation and got the nakano equation. as instances, the planar archimedean spiral antenna, the planar equiangular spiral antenna, the monofilar helical antenna, the conical helical antenna with fixed ascending angle and the conical equiangular - spiral antenna were analyzed through the moment method. all of the results matched fairly well with the references and experiment results

    這種方法的積分方程的積分核里含有復雜的微積分運算，為了簡化計算，本文在推廣的海倫積分方程的基礎上，對方程進行了簡化，推導了nakano方程，並以平面阿基米德螺旋天線，平面等角螺旋天線，軸向模圓柱螺旋天線，具有固定升角的圓錐螺旋天線和圓錐等角螺旋天線為例，用矩量法求解了天線上的電流分佈，研究了螺旋天線輻射的寬頻帶特性，所得的結果均與參考文獻吻合很好。
  2. Our company is located in furong town, famous for drills manufacturing, to the north is yandang mountain - one of the greatest sceneries in china, convenient traffic, near to no. 104 highway. we specialized in manufacturing cemented carbide series, hex fey wrennch magwetil nut serrer power pneumatic screwdriver bits series, screwdrivers, pneumatic holder, diamond core drills for glass, diamond core drills for marble and silica carbide materials, etc

    本公司位於國家級風景區（世界地質公園之稱）雁蕩山南麓，被命名為「中華全國鉆頭（建工）產業基地」的芙蓉鎮，交通便捷，近臨104國道線，是以專業生產硬質合金系列電動、風動螺絲批咀、內六角板手、螺絲刀、套筒、玻璃開孔器、大理石開孔器、金剛砂等系列產品的廠家。
  3. 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
  4. Tool that needs to be prepared during the installation : churn drilling, corner mill machine, welding machine, tapeline, plumb bob, glue pincers, iron chisel, 810 expansion bolt, cross and subtraction sign screw driver etc

    安裝所需準備的工具：沖擊鉆角磨機焊機拉尺線錘膠鉗鐵鑿8x10膨脹螺絲十字和一字螺絲批等。
  5. The influence factors and optimal scheme of connected - triangle surveying with shaft is analyzed in detail. the formula for calculating the lateral transfixion errors of underground traverse with added gyro orientation line is derived strictly, the calculation results show that the accuracy can be increased obviously by the way of orienting added gyro lines

    詳細分析了聯系測量各因素對方位傳遞的影響，探討並比較了加測陀螺方位角后地下導線的精度提高問題，論證了加測陀螺方位角后直伸等邊導線終點精度的嚴密計算公式及陀螺方位邊布測的最佳位置。
  6. A schedule, to report back on display : august 28, 2006 29 9am - 5pm 2 am09 : august 2006 30, 31 to 9 1 9 : 00 - 16 : 30 3, the opening time : august 30, 2006 at 9 : 30 4, remove time : september 1, 2006 as at 15 : 00 exhibitors scope of various bearings : metallurgical mine bearings, machine tool spindle bearings mill bearings, miniature bearings, bearings, ball bearings, roller bearings, needle roller bearings, roller bearings, gyroscope bearings, a high - precision bearings, high - speed bearings, bearings with block, linear motion bearings, low noise bearings lubricated bearings, ultra - low - temperature bearings, corrosion resistant bearings, joints bearings, deep groove ball bearings, angular contact ball bearings, aligning ball bearings, aligning roller bearings, cylindrical roller bearings, bearing a round, spiral roller bearings, thrust bearings, thrust ball bearings, thrust angular contact ball bearings, thrust spherical roller bearings, thrust needle roller bearings, thrust tapered roller bearings, turntable bearings, spherical ball bearings outside of cv and other bearings

    參展范圍各類軸承：冶金礦山軸承機床主軸軸承軋機軸承微型軸承組合軸承滾珠軸承滾筒軸承滾針軸承滾子軸承陀螺儀軸承高精軸承高速軸承帶座軸承直線運動軸承低噪音軸承潤滑軸承超低溫軸承耐腐蝕軸承關節軸承深溝球軸承角接觸球軸承調心球軸承調心滾子軸承圓柱滾子軸承圓軸承螺旋滾子軸承推力軸承推力球軸承推力角接觸球軸承推力調心滾子軸承推力滾針軸承推力圓錐滾子軸承轉盤軸承外球面球軸承等速萬向節及其它軸承。
  7. Aerospace series - bolts, double hexagon head with lockwire holes, relieved shank, long thread, in titanium alloy ti - p64001, anodized, mos2 coated - strength class - 1 100 mpa at ambient temperature

    航空航天系列.鈦合金ti - p64001制的帶安全鎖線孔細桿長螺紋陽極氧化鍍mos2的雙六角頭螺栓.強度等級. 1100mpa
  8. Aerospace series - bolts, double hexagon head with lockwire holes, relieved shank, long thread, in titanium alloy ti - p64001, anodized, mos2 coated - strength class : 1 100 mpa at ambient temperature

    航空航天系列.陽極氧化處理鍍mos2的ti - p64001鈦合金制細桿長螺紋帶安全鎖線孔的雙六角頭螺栓.強度等級: 1100mpa
  9. And then we introduce bezier, b - spline and non - polynomial curves and surfaces modeling, which include l - splines, helix splines, splines in tension and c - curves etc. by analyzing the characters of bezier curves and b - spline curves, we construct trigonometric polynomial curves in the space of trigonometric functions, which assume the characters of b zier curves and b - spline curves

    闡述了cagd中參數曲線曲面造型的發展歷史並介紹了bzier方法、 b樣條方法以及非多項式曲線曲面造型方法，後者包括l -樣條、螺旋樣條、張力樣條以及c -曲線等。文章以b zier曲線和b樣條曲線的特點為基礎，在三角函數空間中構造一組具有上述兩類曲線特性的三角函數多項式曲線，稱其為t - b zier曲線和t - b樣條曲線。
  10. Another rule of nature is found in seashells. the shapes of many of these shells are associated with the spiral pattern in mathematics

    海螺則呈現了另一種規律，原來很多貝殼的形狀都是屬于數學中的等角螺線。
  11. For cutting the composite lock gear with unequal tooth thickness, a study is made on the design method of gear sharper cutter with nonstandard parameter involute tooth profile and noninvolute tooth profile. the cutter tooth arrangement, the choice of teeth number of the cutter and the basic method of cutter design are discussed ; and a new method of choosing deflection factor by using limited area is presented. and the curve of relationship between rear angle on tooth crest and helical angle on tooth side of the cutter is given so as to give a basis for the gear sharper cutter to choose its parameters. to design nonstandard gear sharper cutter by adopting the method mentioned above will simplify the calculation and will increase the efficiency of design

    研究加工不等齒厚的非標準參數漸開線齒形，與非漸開線齒形復合的鎖閉齒輪插齒刀刀齒的排列、刀具齒數的選擇以及刀具設計的基本方法，介紹用限制區域選擇插齒刀變位系數的新方法，並給出刀具齒頂后角與側螺旋角的關系曲線，為插齒刀參數的選擇提供依據.結果表明，採用上述方法設計非標準復合齒輪插齒刀，可簡化計算和提高設計效率
  12. With the help of this program, this paper does research on the moved backwards of the slide surface, lengthening the anchor section, the soil nail ' s total force, gets conclusion about relations between the soil nail ' s length and the slope ' s grade, height, soil ' s mechanical parameter ; relations between soil nail ' s total force and coulomb soil pressure. with the help of the large multiuse finite element program ansys, this paper analyzes the soil nailing in one - step ' s slopes, in two - steps " slopes, puts the emphasis on the axis force ' s distributing along the soil nail at each rows, the effect of both the excavating mode and the original slope figure to the axis force of the soil nail, the one another effect between the upper - step slope and the nether - step slope in the soil nail ' s axis force, gets conclusion about the design of soil nail at the first low, different slope body is the same with different excavating mode, the original slope figure has more effect to some than others because of the slope body, the reasonably design of the step width in two - steps slopes, the two - steps excavating and retaining has more virtue than the one - step ' s. through soil pressure analysis this paper does research on the differences and the links between the coulomb soil pressure theory and the rankin ' s, the vertical pressure at the slope surface when the slope surface is inclined and the retaining wall is rough, the soil pressure ' s distributing behind the panel, gets conclusion about the effect of both the slope body inner stability and the slope surface local stability to the soil pressure

    通過分析比較，論證了對數螺旋線型比圓弧形作為邊坡的假設滑裂面具有較多的工程優點，並為此編制了一個採用極限平衡法分析土釘支護的fortran語言程序，以此作工具對滑裂面的后移、土釘錨固段的超長、土釘總力的大小等方面作了研究，得出了有關土釘的長度與邊坡的坡角、坡高、土體力學參數的關系、土釘總力與庫侖土壓力間的關系等結論；採用大型通用有限元數值分析程序ansys分別對採用土釘支護的一階邊坡、二階邊坡進行分析，重點是研究各排土釘的軸力分佈規律、開挖方式及原始邊坡形態對土釘的軸力的影響、上下階邊坡在土釘軸力方面的相互作用，得出了有關第一排土釘的設計問題、不同類型的土體應適用於特定的開挖方式、原始開挖出的邊坡形態對一些類型坡體的邊坡土釘支護有較大的影響而對另外一些影響不大、二階邊坡臺階寬度的合理確定、二階開挖及支護比一階時具有較多的工程優點等結論；通過土壓力分析對朗肯、庫侖兩種經典土壓力理論的區別與聯系、坡面傾斜及墻背有摩擦時的坡面豎向應力分佈、面板背土壓力的分佈形態作了研究，得出了邊坡支擋土壓力受坡體內部穩定與坡面局部穩定兩個方面的影響、土釘支護面板背土體中卸荷拱的存在對面板受力有利等結論。
  13. It would be ready for virtual manufacture of ball - end cutters. firstly, the traditional cutting - edge models with constant helix angle of ball - end cutters are analyzed and the befitting normal helix models are proposed, and helical peculiarities of them are analyzed by definition of helix angle

    首先，本文對傳統的等螺旋角的球頭立銑刀刃口曲線的模型進行了分析，建立了正交螺旋線的刃口曲線模型，並運用螺旋角的定義分析了該刃口曲線的特點。
  14. The application study of non - equal changeable angle logarithm helical curve in drawing shape of twisted blade

    非等變角對數螺旋線在扭曲葉片繪型中的應用
  15. Secondly, for satellite controlled by reaction wheels, an algorithm or strategy is presented. and then reaction wheels are used to generate a known disturbance torque, using thrusters as controller and gyro as the attitude sensor, a thruster parameters calibration for thruster levels and alignments on - line is achieved

    其次，針對反作用飛輪控制的衛星，提出了一種衛星質量特性在線辨識策略和辨識演算法，並利用反作用飛輪產生擾動力矩，推力器作為控制執行機構，使用陀螺測量衛星姿態角速度，實現推力器推力大小和方向等參數的在線辨識。
  16. Then, this discourse detailedly discusses system ' s developing method and process with object arx - developing tool of autocad and microsoft visual c + +, and discusses how to extract the geometrical information and how to calculate the coordinate value of screw thread holes " axes, and discusses the calculation of rotated angles and output of cut location file, also discusses how to make use of present research result about optimization of the machining process to program

    接著詳細論述了運用autocad的二次開發工具objectarx和微軟公司的visualc + +進行系統開發的方法和過程，討論了如何提取圖形信息和螺紋孔軸線坐標軸的計算，再到旋轉角度的計算和刀位文件的輸出，以及如何利用已有的加工工藝優化的研究結果進行編程等問題。
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