推導步 的英文怎麼說

中文拼音 [tuīdǎobù]
推導步 英文
derivation step
  • 推 : 動詞1 （向外用力使物體移動） push; shove 2 （磨或碾） turn a mill or grindstone; grind 3 （剪或削...
  • 導 : 動詞1. （引導） lead; guide 2. （傳導） transmit; conduct 3. （開導） instruct; teach; give guidance to
  • 步 : Ⅰ名詞1 （步度; 腳步） pace; step 2 （階段） stage; step 3 （地步; 境地） condition; situation; st...
  1. The main contributions are as follows : ( 1 ) de ( differential evolution ) algorithm is proposed to invert the ocean acoustic parameters in shallow water in order to get faster and more accurate results than ga ( genetic algorithm ) and sa ( simulated annealing algorithm ). also a posteriori probability analysis method is applied to evaluate the uncertainty of inversion results. ( 2 ) maximum likelihood objective functions for broadband mfi are derived according to different conditions

    （ 2 ）根據不同的前提條件，採用似然比的方法推導了寬帶匹配場反演的最大似然目標函數；深入地研究了寬帶匹配場處理中的相干與非相干問題；在分析參數反演的敏感性之後，提出了淺海環境參數寬帶匹配場反演的多步優化策略，並與全參數反演方法進行了性能上的模擬比較。
  2. Moreover, the presence of the activities of aerobes and anaerobes in the immobilized sludge is further conformed by specific activity experiments in aerobic and anaerobic conditions, and the microorganism community structure of the co - immobilized granular sludge in micro - aeration condition is also deduced

    厭氧好氧活性實驗也進一步證實了固定化顆粒污泥中厭氧、好氧菌活性的存在，並進一步推導出了微氧條件下氯酚固定化顆粒污泥的菌群結構。
  3. Checking each step of a derivation for dimensional consistency is a useful way to look for errors.

    對推導過程的每一步，都核對一下量綱是否一致，這是發現謬誤的好辦法。
  4. Furthermore, power transfer rule of multi - structures series system is educed

    進一步推導了多結構串聯系統中的功率傳遞規律。
  5. Roll over protective structure ( rops ) is a device which installs on out of construction vehicle. the main functions are : when the vehicle rolling over. rops can prevent the vehicle from rolling over further, and reduce the possibility of rolling vehicle injures operator ; when the vehicle traveling on freezing soil. concrete and rock, it has large resist continuous impact ability ; when the vehicle overturning rops can support the whole vehicle. arrangement of falling object protective structure ( fops ) can block objects ( such as trees, rocks ) so that supply protection for operator. this problem is that research rolling over and falling objects protective structure of bulldozer by learning research condition of rops / fops and relative lay down international standard. on the base of theory analysis. detrudes counting formula of rops / fops deformation through founding mechanics analysis model of rops / fops at the stage of elasticity and plastoelastic. and finds a set of feasible nonlinear finite element analysis counting. lt calculates rops / fops plastoelastic deforma variable of 320hp bulldozer, bulldozer has been carried out by optimizing design method

    其主要功能是：當車輛滾翻時， rops能刺入未凍土壤而阻止車輛的進一步滾翻，降低滾翻的車輛對系著安全帶司機軋傷的可能性；保證rops在碰撞和沖擊變形不大的地面（如凍土、混疑土上、巖石）時，能具有相當大的抗連續沖擊能力；當車輛已經處于顛覆狀態時，已經變形的rops應能支撐住整車。落物保護裝置（簡稱fops ） ，其構件的布置方式要能遮蔽墜落的物體（如，樹木、巖石等） ，以便對司機提供適當的保護。本課題主要通過了解國內外有關對rops fops的研究情況和有關國際標準的制定，對大型推土機傾翻和落物保護裝置進行研究，在理論分析的基礎上，通過建立rops fops的力學分析模型，推導彈性、彈塑性階段rops fops變形的計算公式，建立一套可行的rops fops的非線性有限元分析計算方法。
  6. Collisonal quantum interference ( cqi ) was observed in the intramolecular rotational energy transfer in the experiment of the static cell, and the integral interference angles were measured. to observe more precise information, the experiment in the molecular beam should be taken, from which the differential interference angle can be obtained precisely. in this paper, the theoretical model of cqi is described in an atom - diatom system in the condition of the molecular beam, based on the first - born approximation of time dependent perturbation theory, taking into accounts the anisotropic lennard - jones interaction potentials. the method of observing and measuring correctly the differential interference angle is presented. the changing tendencies of the differential interference angle with the impact parameter, velocity, and et al. are discussed

    分子內部轉動傳能的靜態池實驗觀察到了碰撞量子干涉效應（ cqi ） ，並且測得積分干涉角，為了獲得更加精確的分子內部轉動傳能的碰撞量子干涉效應信息，實驗就必須要採用分子束實驗進行.本文理論上採用各項異性相互作用勢，應用含時微擾理論的一級波恩近似，假想在分子束實驗的條件下，建立在原子-雙原子分子體系中碰撞量子干涉的理論模型.理論上推導出微分干涉角具體表達式，通過計算定性地討論了微分干涉角隨著碰撞參數、速率等的變化趨勢，同時初步探討了實驗的正確觀測途徑，得出了採用分子束進行實驗觀測的實驗方法，為進一步進行分子束實驗提供了理論基礎，對實驗的進行起到了一定的借鑒作用
  7. At last, the conclusions of the whole thesis are drawn, and it is put forward that the future research emphases on the infrared radiation absorption ct technology should focus on : instantly get the absorption projections are the crucial factor to utilize the technology industrially ; on the basis of the hypothesis that the gas is ideal gas, species concentration of particular gas medium can be measured at the same time, which must be helpful to comprehend combustion essence ; if laser source to replaces blackbody stove, for irradiant flame, interferometric projection can be attained, and its temperature distribution will known

    最後，對全文進行了總結，並指出今後研究工作重點。指出：瞬時得到各方向的投影是此技術實用化關鍵；在獲得溫度分佈信息基礎上，進行必要的假設和推導，能同時得到火焰中某特定組分濃度的分佈，這必將進一步我們對燃燒本質的理解；利用方向性好，輻射強度高的激光源代替常規的黑體爐，能得到輻射干涉投影圖像，這樣就能測量所介紹系統不能測量的發光火焰溫度分佈。
  8. This paper theoretically analyses the armature current and magnetomotive force in ac exciter of brushless synchronous machine with rotating rectifier. under the normal or fault conditions of rotating rectifier, the mathematical expressions of the armature current, the m. m. f and induced electromotive force are approached

    本文通過對旋轉整流器在正常與故障狀態下的交流勵磁機電樞電流和電樞電勢作了初步的理論分析，推導出旋轉整流器在正常與故障狀態下電樞電流、空間諧波合成磁勢及其感應電勢的數學表達式。
  9. The expressions of imaging models and the method of imaging are gained. the problem of the time domain walk compensation and picture mistiness are discussed

    通過數學推導得出了合成孔徑雷達成像處理模型的表達式及成像的方法和步驟。
  10. The second, the main work in the paper is discussed. they are include : the theory and character of electromagnetic leaking from a computer ; the theory of accumulation mean filter and pectination filter ; the analysis of synchronous signal precision, at 10 - 12 second level, for stably intercepting ; the technology requirement of receiver and data acquisition board for clearly displaying the images recovered from the intercepted data

    本文從計算機視頻電磁泄漏和數字濾波器兩方面的基本理論出發，詳細論述了計算機視頻信息電磁泄漏的原理及特點，指出視頻泄漏信息的頻譜是以行頻為周期的譜線；分析了重加濾波器和梳狀濾波器的性能；分析了視頻泄漏信息截獲的條件；推導出穩定截獲視頻泄漏信息需要對同步信號的精度控制在皮秒級；論述了清晰再現對接收機和數據採集卡的技術要求。
  11. The verify experiment proves that its ratio and phase characteristics are much better than ordinary ones and the precision is enough for measure use. zero - flux current transformer can ’ t obtain absolute zero flux because residuary flux, so when the secondary turns is too small it will not satisfying. to improve the precision further, proposes a method to compensate zero - flux current transformer using capacitance parallel connected coil and deduces it

    為了進一步抵消剩餘磁通，提高互感器的精度，提出了一種並聯電容線圈補償零磁通的方法，並進行了理論推導，設計了基於該方法的100匝電流互感器，通過校驗證明它可以改善零磁通電流互感器的比差和角差特性，提高互感器的精度，將電流互感器的二次匝數由普通互感器的幾千匝降到了100匝，提高了測量微小電流的能力。
  12. Obtaining the formula of the swinging period of a synchronous satellite with lagrange ' s equation

    用拉格朗日方程推導同步衛星的擺動周期
  13. The study in the paper starts with beam distortions, and it treats the plastic deformation area as pure bending sect, rest of the beam as rigid bodies. according to different shapes of the external tendons, it divides into three structural forms familiar in projects, that is the beams with no deviator, with a deviator and with two deviators, and studies the relation between the deformation of the external prestressing tendons and that of the beams, and derives the formulas of the ultimate stress increment of external tendons. in the formulas, the ultimate angle corresponding to half of the plastic deformation area is considered as a variable parameter

    本文首先從梁極限狀態下的變形入手，將塑性鉸區看作純彎段，將塑性鉸以外的區域看作剛體，按照體外預應力筋的形狀不同，分工程中最常見的三種體外結構形式，即無轉向塊的直線型體外筋混凝土梁、具有一個轉向塊的單折線型梁和具有兩個轉向塊的雙折線型梁，研究體外預應力筋變形和梁體的變形間的關系，推導出以極限狀態下塑性鉸區之半對應的轉角為參數的計算體外預應力混凝土簡支梁以及連續梁的體外筋應力增量計算公式，並進一步求得梁的極限承載力。
  14. The study in this article can provide useful theoretical proofs on the design and operation of aerial working platform of straight - arm mode, what ' s more, the conclusions and the results of this article is prepared for the active control of the vibration

    本文的研究為高空作業車的設計和操作提供了理論依據，也為下一步高空作業車的振動的主動控制打下了基礎。文中詳細闡述了方程的推導過程，並運用matlab計算軟體進行編程完成了整個過程。
  15. To utilize the advantages of dsp chips, the system should be computing sources economical. according to digital signal processing theory, the poly - phase fir can help reduce the workloads of the ddc / duc. therefore, adding the complex carrier mixers, the channelization system ( a method of using a single wideband facility to transmit many relatively narrow - bandwidth signals. by subdividing the frequency spectrum used in the wideband channel ) can be formed utilizing the characters of fft

    為了使開發出的軟體可以適用於高速dsp器件開發，節省系統資源，課題首先從數字信號處理的理論進行分析，得出可以利用抽樣率轉換的數字濾波器的特點，即多相濾波實現數字上下變頻計算負擔的減小，之後進一步將多相濾波器與頻譜搬移部分結合，通過公式的推導，得出可利用快速傅立葉變換的特點實現多路信號的通道化發射和接收的處理模型。
  16. Clock recovery is an important and difficult part of tdm access, so the thesis will emphasize on it. and two methods of clock recovery are proposed in the thesis

    然後，本文對同步時鐘統計恢復法進行了分析，推導出了時鐘信號低頻抖動的時域和頻域特性公式，並利用matlab對低頻特性進行了模擬分析。
  17. The intersection method between the two pts is discussed also. when a large target is captured, a new intersection method, namely non - coplane intersection method, is deduced. all these results provide rich information for intersection method

    研究了光電經緯儀之間的交會方法，針對空間大目標，推導出一種新的交會計算方法? ?異面交會方法，在前人的基礎上進一步豐富了光電經緯儀交會計算的知識。
  18. And the output components of the despread correlator under the condition of additive white gaussian noise ( awgn ) are analyzed to derive the expressions for the false alarm probability and the detection probability

    同時也對解擴相關器在接收端噪聲為加性白高斯噪聲情況下的輸出成分進行了詳細分析，推導得出大步進搜索的虛警概率和檢測概率的公式。
  19. My research paper can be divided into five parts : i. practical mathematical models have been derived and equations are also derived ( includes field excitation system, governing system ), which are used in generator three phases short circuit and by adding large loading. ii. simulation of the generator ' s shunt - wound run

    發電機組實用數學模型的推導（包括勵磁系統和調速系統） ，並由此推出了用於發電機三相突然短路和突加異步電機大負載模擬的差分方程；並進行了突卸負載、突加負載時調速系統的模擬過程； 2
  20. The modern unmanned helicopter flight control system is generally composed of the flight control computer, the servo driving mechanism, the sensor, and the ground monitor control system etc. in this thesis the research to the helicopter flight characteristics was conducted at first, and its flight dynamic model was preliminary discussed, especially the mathematic model under hung - stop condition was formulated and the algorithm of the controller was designed in detail

    現代無人直升機飛行控制系統一般由飛行控制計算機、伺服驅動機構、傳感器、地面監測控制等分系統組成。本文首先對直升機的飛行特性進行了研究，並且對飛行動力數學模型做了初步探討，尤其對在懸停狀態下的數學模型做了較為詳盡的公式推導和控制器的演算法設計。
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