旋螺線的 的英文怎麼說
中文拼音 [xuánluóxiànde]
旋螺線的
英文
helical-
In the core, coriolis forces deflect the upwelling fluid along corkscrewlike, or helical, paths, as though it were following the spiraling wire of a loose spring
在地核中,科氏力使涌升的流體沿著像開酒瓶器的螺旋路線上升,彷佛順著彈簧的螺旋線圈移動。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。In the present representation this crystal would correspond to a parallel array of helices.
在這種表示法中,晶體應相當于許多螺旋線的平行排列。As it is impossible to machine the helicoid gear surface with large module and a few teeth by gear generating, a four - axis milling was developed in this paper
摘要針對大模數少齒數螺旋齒輪的加工特點,結合漸開線和擺線的性質,利用微分幾何工具計算出該類曲面的法矢,作為選取球頭銑刀半徑的依據。The result indicates that, in the course of the rainstorm in huoshan, there are obvious low - level jet of great intensity, infection of mesoscale shear line, enhancement of plus vorticity which increases intensity of convergence, improves ascending velocity and brings on precipitation, and quick enhancement of helicity which provides the basis to forecast, in addition, convergence of moisture flux and analyzed potential vorticity which reflects baroclinic convective instability sufficiently indicate the characteristics of the rainstorm
結果表明:此次霍山暴雨發生前後,存在明顯的大強度低空急流,並受到中尺度切變線的影響,而且正渦度的加強引起了輻合加劇,提高了上升速度從而引起降水,同時暴雨發生前螺旋度的迅速增強,也為預報提供了根據,另外水汽通量的輻合以及分析位渦反映出的斜壓對流不穩定都充分體現了這次降水的特點。Secondly, in this paper, the four typical uwb antennas of tem horn antenna, log - periodic antenna, biconical antenna and helical antenna are theoretically analyzed and the uwb antenna design methods are generalized and discussed
其次,本文對tem喇叭天線、對數周期天線、雙錐形天線和螺旋天線四種典型的超寬帶天線進行了理論分析,總結並討論超寬帶天線的設計方法和手段。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The invention of the solenoid provided immediate concrete evidence of this idea.
螺旋管線圈的發明為這種看法直接提供了具體證據。The bulk of the mass is spread out, forcing stars to trace a spirograph - like rosette : an ellipse that does not close on itself but gets offset each time the star completes one revolution [ see box at right ]
整體質量分散開來,迫使恆星運行方式如旋轉繪圖盤所畫出的花瓣狀螺線:那不是每圈都會封閉起來的橢圓,恆星繞行一周后,軌道並不接合便又重新開始下一周的運動(見右方整理軌道秩序) 。Analysis of archimedean spiral antenna using moment method with curved segmentations
曲線分段的矩量法分析阿基米德平面螺旋天線In this thesis, the concept of " fractal " and the recursive algorithm of fractal structure are depicted. the wavelength - independent character of archimedean spiral antenna and the space filled property of koch monopole are analyzed by the method of moment
本文介紹了分形的基本概念和分形結構的迭代演算法,採用矩量法分析了阿基米德螺旋天線的頻率無關特性和koch單極天線的空間填充特性。Computer aided design of the cutting edge profile for spiral fluting cutter
螺旋槽盤形銑刀刃形廓線的計算機輔助設計Revolving bolts for contact wire clamp for overhead equipment ; revolving bolts with thread
架空設備的接觸導線用旋轉螺栓.帶螺紋的旋轉螺栓Having a shape approximating that of a helix
近似螺旋形的,近似螺旋線的This paper presents a design method of propeller blade section operating in non - uniform flow field and an idea of equivalent operating curve with unchanged cavitations characteristic on blade section, the method for selecting the curve is set up
摘要給出了非均勻流場中螺旋槳槳葉剖面的設計方法,提出了保持剖面空泡特徵不變的等效運轉曲線的思想,並創建了等效運轉曲線的確定方法。Changing the diameters and fixing angles of milling cutter can meet the machining requirements of helical surface. this method has been applied in the process of manufacturing twin - screw in rubber and plastic mechanics, which simplifies the process route and shortens the prepare time in production and at the same time saves the cost and improves technical and economic benefits
通過改變圓柱立銑刀的直徑和加工安裝角度來滿足螺旋面的加工要求,該方法已在橡塑機械用同向雙螺桿的加工中得到應用,縮短了加工工藝路線,減少了生產準備時間,節約了加工成本,取得了良好的技術經濟效益。This paper develops a mathematical model for the solution to the longitudinal tooth curve of an internal gear shaver based on the simplified principle for space transmission of a helical gear pair without flank clearance, and proposes a calculating approach of the profile modification of the grinding wheel to be used for grinding the longitudinal tooth curve of the shaver
摘要用簡化的空間螺旋齒輪作無側隙嚙合傳動的原理,建立了求解內剃齒刀齒向曲線的數學模型,並給出了修磨這種齒向曲線的盤形砂輪的廓形計算方法。Aerospance series - installation holes for inserts, screw thread, helical coil, self - locking - design standard ; german version en 3044 : 1998
航空航天系列.自鎖螺旋形線圈螺紋襯套的安裝孔.設計Direct drive to the rolls with heavy - duty helical bevel gears where the output shaft is directly coupled to the roll shaft
高堅固的螺旋斜線軸承直接驅動輥筒。輸出軸直接連接輥軸,中間沒有任何傳動消耗。This paper describes structure, working principle, application and key technologies of screw driven circular conveyor line
摘要對螺旋驅動的環形輸送線系統結構、工作原理、使用效果及技術關鍵問題作了詳細介紹。分享友人