曲線航法 的英文怎麼說

中文拼音 [qūxiànhángfǎ]
曲線航法 英文
traverse sailing
  • 曲 : 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...
  • 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...
  • 航 : Ⅰ名詞（船） boat; shipⅡ動詞（航行） navigate （by water or air）; sail
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. Some testing devices are of advanced ones, such as scanning electronic microscope, microfocus circular radioscope, water - immersed ultrasonic flaw detector, 3 - axis measuring machines, large - sized projector, etc. for the production of non - aero products, there are large - sized die - casting equipment, and nearly 100 pieces of specialized gear machine tools including worm - gear grinding machine, etc. it has some specialized production lines for piston, crankshaft, cylinder and housing, etc., as well as 4 flexible production lines advanced at home for motorcycle engine, and a complete set of automatic inspection test eqiuipment for motorcycle engine

    計算機輔助設計輔助加工技術正在普遍使用。在非航空產品生產方面有大型壓鑄設備殼型鑄造，包括鍋桿輪磨在內的輪專用機床100多臺，以及活塞曲軸汽缸殼體等專業化生產線。此外，還建成了具有國內領先水平的4條摩托車發動機柔性生產線，以及成套的摩托車發動機檢測設備，可進行測試數據分析，改進檢定測試方法等。
  2. Based on a systematic discussion on the contents, characteristics and the up - to - now accomplishments of these three operations in cagd, we present our researches in three ways as follows : ( 1 ) efficient evaluation for parametric curves and surfaces based on generalized ball bases based on the generalization of mathematical model of surface lofting program in the consurf system, two generalized ball surfaces and the recursive algorithms for evaluating them are given. furthermore, the conversion algorithms from bezier form of a surface to these two generalized ball forms are presented

    在系統地論述cagd中此三類運算的內容、特點、已有研究成果的基礎上，就以下三方面給出了研究成果： （ 1 ）基於廣義ball基的參數曲線曲面快速求值以前英國航空公司consurf系統機身模線程序數學模型的推廣為基礎，定義了兩類廣義ball基曲面，給出了求值的遞推演算法，推導了b zier曲面到這兩類曲面的轉換演算法
  3. By the simulation, it is indicated that the curve motion model based on the particle can describe the curve motion of the target. and it is shown that the performance of the ukf algorithm is more precise than the tradition nonlinear filtering technique. by the contrast between the simulation results and the positioning result of commercial data process software,

    模擬結果表明，基於質點的曲線運動模型可較準確地描述進行曲線運動的載體; ukf演算法作為衛星導航系統的非線性濾波技術，較之傳統的線性濾波技術可獲得較高的定位精度;其定位結果與商業數據處理軟體相比，可滿足定位精度要求，該演算法可以直接應用於衛星導航系統的軟體實現。
  4. Through flume experiment and numerical simulation, preliminary work on computation of water surface profile in regulation river reach, numerical simulation of flow with single spur dike in flume, and 3 - d numerical solution of flow around spur dikes group are carried out in this paper

    本文通過模型實驗和數值模擬相結合的研究方法，在整治河段一維水面曲線計算，單丁壩繞流數值模擬，紊流數學模型在航道整治工程中的應用以及丁壩群附近水流的三維流動特性等方面做了一些初步研究。
  5. In this paper, the waterway curve plane function is established with move fit method to calculate the depth value of grid points, and in part fields linear method is adopted because of the distributing scrambling of waterway measure points. as a result of the use of two methods, not only the calculating precision is high but also the calculating speed is very fast

    本文選用移動擬合法建立航道曲面函數，插值計算航道測量區網格點的深度值，並且根據航道測量點分佈的不規則性進行了優化，即在測量點稀少的地方運用了線形內插法代替移動擬合法來進行插值計算，兩種插值方法的合理結合，不僅保證了插值的精度，特別是提高了插值的計算速度。
  6. 3. bring forward a new idea : the ideology of synergetics used in atomic simulation and multi - scale simulation of materials design. on the basis of this, next tasks were put forward : ( 1 ) analyzing the changes of stress - strain curves of the interphase before and after pre - treatment ; ( 2 ) the efficient of the coupling effect of o2, na2s04 and h2o stream on the oxidation and erosion resistance of interphase ; ( 3 ) the methods of improving environment performance of interphase above 1273k

    提出將協同學的思想用於原子級模擬及跨尺度模擬的思路，並在此基礎上，提出下一步的工作設想： （ 1 ）分析熱處理前後界面相區域應力-應變曲線的變化； （ 2 ）航空發動機模擬環境中，氧、硫酸鈉蒸汽及水蒸汽耦合效應對界面相抗氧化性、抗腐蝕性的影響； （ 3 ） 1273k以上界面相環境性能提高的方法。
  7. In this paper, an approach of the systematic artificial neutral net was introduced into the analysis on the ship - against - bridges probability with a computer programs. based on the basic data of the present 12 typical bridges as the sample, 4 chief influential factors as the input coefficient, such as the bridge span, the water flow rate, the incline angle between water flow direction and the direction normal to bridge axis, and the curve in the course near the bridge area, with the ship - against - bridge probability as the output coefficient, the intelligent judging system of the ship - against - bridges probability reflecting the influence of the above input parameters is obtained after training

    本文首次將人工神經網路系統方法引入了船撞橋概率的研究當中，編制了計算程序，成功地以現有12座典型橋梁的基礎數據為樣本，以橋梁跨徑、水流流速、水流方向與橋軸法線的夾角以及橋區航道彎曲度等4個船撞橋主要影響因素為輸入參數，以船撞橋概率為輸出參數，經訓練得到了能較好地反映上述輸入參數影響的船撞橋概率判斷系統。
  8. Considering the shortcomings in the genetic algorithms, some improvements are proposed in order to elucidate its strong optimizing ability, genetic algorithms are used to optimize the pid parameters of ship autopilot. the comparison between the different simulation curves shows the validity of genetic algorithms in looking for the best parameters

    本文首先用遺傳演算法來對船舶航向保持自動舵的pid控制參數進行在線優化，通過對用常規工程方法整定的pid控制和用遺傳演算法優化的pid控制的模擬曲線的比較，說明了遺傳演算法強的全局尋優能力。
  9. At last, some practical navigation data in hong kong are processed by algorithm improved and woleson ' s. it is proved by the results of experiments that new algorithm not only decreases the number of characteristic point, but also predigests curve matching algorithm. the new algorithm makes full use of curve characteristic information in matching process

    最後，利用香港地區的實際導航數據，分別採用改進演算法和woleson演算法進行計算，分析試驗結果，證明改進后的演算法不但降低了對特徵點的依賴，而且在匹配中充分利用了曲線特徵信息，簡化了曲線匹配演算法。
  10. Decca navigator system : receivers for ships - minimum performance standards - methods of testing and required test results

    臺卡遠程連續波相位雙曲線無線電導航系統.船用接收機.最少性能標準.試驗方法和規定的試驗結果
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