時距曲線 的英文怎麼說

中文拼音 [shíxiàn]
時距曲線 英文
hodograph
  • : shí]Ⅰ名1 (比較長的一段時間)time; times; days:當時at that time; in those days; 古時 ancient tim...
  • : Ⅰ名詞1 (距離) distance 2 (雄雞、雉等的腿的後面突出像腳趾的部分) spur (of a cock etc )Ⅱ動詞...
  • : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
  • : 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...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively

    本文對大圓環直感應電機進行了深入細致研究,內容包括: ( 1 )本文採用有限長行波面電流作用於有限長鐵芯上的模型,引用了氣隙磁場一維解,研究了單層繞組磁場,奇數極半填槽雙層繞組在採用整和短磁場的分析、比較,簡單介紹了二維解; ( 2 )用有限元軟體ansoft對大圓環直感應電機空載氣隙磁場進行了靜態分析,並分析了結果; ( 3 )用軟體進行了額定電壓下的瞬態分析,得到了轉矩,位移,轉速隨間變化圖,利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較,採用等效電路法計算了堵轉的最大電磁力並做實驗進行了驗證,由實驗測得了三相電流波形,並與計算結果進行了比較,對其不對稱性進行了定性分析。
  2. In the paper, it is discussed to the winding of hydrophone array, the deviation and depth difference between focus and hydrophone array, and the deviation of time - distance curve, and presents a way to solve the problems

    本文針對排列彎、炮點偏移大小、炮點與檢波器不在同一深度以及時距曲線偏移等問題進行了討論,並提出了校正和解決的方法。
  3. Time distance curve

    時距曲線
  4. Travel time cruve

    時距曲線
  5. Conventional seismic data processing method uses hyperbolic equation to describe time - distance formula of reflection wave, error of this equation increases with the increase of heterogeneity, anisotropy and spread length

    常規地震資料處理方法是利用雙方程來描述反射波時距曲線規律,此方程隨著地層非均質性、各向異性和排列長度的增加,其誤差變大。
  6. In this paper, the practical data is analysed and get a good effect. it proves that it is vailed for vti layers using the approximation moveout formula in this paper. this method has a good foreground

    本文還結合實際資料進行了分析,取得了較好的效果,說明了用本文建立時距曲線擬合公式進行橫向各向同性介質多波速度分析是可行的,且具有廣闊的發展前景。
  7. So when the layers have the anisotropic properties, seismic wave " s velocity and moveout will become complex. it needs to acquire the anisotropic moveout formulas and the connection of layers parameters with velocity. then using multi - wave information sufficiently to analyse the seismic data

    因此,在地層存在各向異性,使地震波速度和時距曲線變得很復雜,需要求取各向異性的時距曲線擬合公式和分析地層參數與速度的關系,從而更充分的利用多波信息進行各向異性介質的分析處理。
  8. In some time - critical situation, continuous ssi is computation bottleneck of some solid modeling system. conventional approach for solving continuous ssi often uses intersection algorithm iteratively without taking the characteristic of the surface into account to simplify computation. the dissertation analyzes the intersect curve structure of continue surface, from the point of intersect curve ' s evolution, it describes the relationship between topology of offset surface intersect curve and topology transmit point ( ttp )

    面和運動面在cad cam領域中有著重要的應用,在一些間敏感場合例如數控加工動態模擬,等面和運動面等連續變化面求交運算已成為這些系統的計算瓶頸,連續變化面求交問題的通常解法是採用面求交演算法反復迭代計算交,沒有考慮連續變化面交之間的相似性進行求交簡化,效率上一直不能有很大的提高。
  9. Two transducers b and c, which record the time when the shock wave front arrives, are placed on both sides of location ( a ) with equal distance, the average shock wave speed at location ( a ) can be calculated from the distance b to c and the time that the shock wave needs to travel from b to c. all the tested signals are stored on a pint - sized system of independent function

    測速測壓的方法是指在測取沖擊波壓力-的同,在被測點前後等離處分別安裝壓力傳感器,記錄沖擊波上升前沿到達的刻,通過間差來獲取被測點處沖擊波的平均速度。所有的測試信號都被記錄在同一個小型的、能獨立工作的測試系統中。
  10. In practice, it ’ s very hard to find any ideal scatter points to track, so this thesis focuses on the motion compensation algorithm base on motion parameters estimation, which is used in r - d fft imaging algorithm and verified by simulation. work of this thesis contains : first analyze the signal - processing model of isar system in detail, and establish a 3 - dimensional mathematical scattering model of moving target. then some improvements are made on existing compensation algorithm, to get a higher image quality and reduce compute burden

    本論文有以下幾點創新: 1 .在離向的補償(包絡對齊)方面,採用基準相關法代替相鄰相關法或積累相關法,一定程度上解決了可能出現的包絡漂移和包絡突跳現象;根據目標運動軌跡特點,採用二次擬合的方法,將包絡對齊的局部誤差轉化為全局的誤差,以便實現較優的整體對齊效果。
  11. Based on the resolving algorithm of continuous - layer method, the time order analyzing curves, acceleration curves and the response spectra of transfer function at the different points of the ground and at the same point on the different ground conditions are gained. it demonstrates that the responses of ground in x, y and z axial directions all change by time, and the obvious wave propagation appears in ground. for different observing points on the same ground condition, at more distant points from the load line, the less swings are found, that is to say, vibration possesses the obvious characteristic of attenuation

    基於分層法的解析演算法,得到了在不同點以及在同一點但不同地質條件下的程分析、加速度變化和傳遞函數反應譜,結果表明,地基土在x 、 y 、 z三個方向的響應都是隨間變化的,並且伴隨有明顯的波動現象產生;對于相同地質條件的不同觀察點,離荷載作用越遠的地方振幅越小,即振動具有明顯的衰減性。
  12. Finally, after the long - term ion migration test, we analyzed the relation between the current and accumulative charge with the test time, computed the ion mobility and migration distance, and analyzed the distribution variety of na + and k + in the test samples

    對10支試品進行了長期離子遷移試驗,測量了泄漏電流和累計電荷量隨間變化,計算了試品的離子遷移率和遷移離,並對試品na ~ + 、 k ~ +的含量進行了化學分析。
  13. Through approximating the deformation space by using curve and surface offset techniques, we obtain a unified space deformation model. thus the sampling problem is solve naturally at the same time, we provide a unified kernel for the implementation of different space deformation models

    通過對面控制變形中的變形空間進行等逼近的方法,我們實現了一個一維、二維、三維控制手段的統一空間變形模型,這種統一不但自然地解決了面控制變形中的采樣問題,同為實現各種空間變形提供了一個統一的數學模型。
  14. Then the long time change feature of radiation climate over china is analyzed - the results show that, the radiation climate changes a little before 1950s. from 1950s to 1970s it is increasing, and it reached the apex in the 1970s. later it began to decline, up to the present

    通過總輻射年值的10年滑動平均和累積可以得到我國太陽總輻射氣候長期變化的趨勢特徵是: 50年代以前,我國的總輻射比較平穩,沒有大的變化;在50年代前後,總輻射開始呈現增長的趨勢;在整個的70年代,總輻射達到最高; 70年代末80年代初的候,總輻射又開始了下降的趨勢。
  15. It is validated that the numerical methods can absolutely predict the flow in the microchannels. the flow field around the roughness and the pressure drop of midline along flow direction are analyzed. it ' s found that the range of the pressure drop change relate to the magnitude of relative roughness, the distance between two parallel planes, the re number and ratio of the size of roughness and the distance between two roughness

    通過對粗糙元周圍流場和充分發展段中心壓力的分析,發現有粗糙元存在的兩平行平板間微通道,其充分發展段壓降大於光滑平板充分發展段壓降;當相對粗糙度和re不變,隨著板間的減小,粗糙度對主流的影響不斷增大;當板間和相對粗糙度不變,在層流狀態下,粗糙度對流動的影響不隨re的變化而變化;當板間和re保持不變,相對粗糙度越大,其對流動的影響就越大。
  16. Radius variation of image beam waist due to spherical aberration which varies with the position of objective beam waist and optical system focus is analysed by the form of curve

    的形式分析了當物方束腰的位置和光學系統焦變化,由球差引起的像方束腰半徑變化量也隨之改變。
  17. A new data storage structure is designed to resolve the difficulty in arrangement of unorderly intersection points and accelerate the measuring process during curvilinear distance between two points measuring

    本文在實現空間兩點間離的測量,設計了一種新的數據存貯結構,解決了雜亂交點的排序這一難題,提高了測量速度。
  18. 2. we analysize detailly the influence of the systematical parameter to the height precision in the ct - insar. we through the simulation of computer establish the mathematical model of the different deviation source with the height precision and the relation curvature, morever we have given the relation of the height precision with the ground distance in the measurement strap under the given deviation precision

    詳細分析了ct - insar中各系統參數對高度精度的影響,建立了不同誤差源與高度精度的數學模型並通過計算機模擬給出了相應的誤差關系,同在設定各誤差精度的條件下,給出了測繪帶內高度精度與地之間的關系。
  19. The precise of velocity analysis is controlled by the approximation formulas of moveout curve and the analysis method

    決定速度分析的精度的主要方面有時距曲線擬合公式的精度和速度分析的具體實現步驟。
  20. Next, a three - span curve continuous box beam has been studied by fem, and how to set the single - pedestal pier in curve continuous box beams has been discussed. when setting the single - pedestal pier, the vehicle flow should be inspected firstly, and then a best offset distance should be selected within the feasible range of the offset distance. meanwhile, increase the spacing interval of the double supports to the largest extent when installing a double supports on a sharing single - pedestal pier, which can enhance the stability and security of the bridge as a whole

    對上石立交橋中一座三跨連續的箱梁進行有限元分析,詳細地討論了在箱梁中如何合理設置獨柱墩的問題,分析表明獨柱墩的設置應該根據車流調查的實際情況,再結合結構本身的特徵,在可行的偏范圍內選擇一個最佳的偏,另在對公共墩上的雙支座進行設置的候應該盡量使雙支座的間增大,這樣可以保證橋梁整體的穩定性和安全性。
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