計算困難 的英文怎麼說

中文拼音 [jìsuànkǔnnán]
計算困難 英文
dyscalculia
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 算 : Ⅰ動詞1 （計算數目） calculate; reckon; compute; figure 2 （計算進去） include; count 3 （謀劃;計...
  • 困 : Ⅰ動詞1 （陷在艱難痛苦中或受環境、條件的限制無法擺脫） be stranded; be hard pressed 2 （控制在一定...
  • 難 : 難Ⅰ形容詞1 （做起來費事的） difficult; hard; troublesome 2 （不容易; 不大可能） hardly possible 3...
  • 計算 : 1 （求得未知數） count; compute; calculate; reckon; enumerate 2 （考慮; 籌劃） consideration; pla...
  1. Because it is hard to mesh for small angularity in the body, especially spline, so we have to simplify these parts. we adapt two methods to simplify them, and choice the better one to calculate the strength of the shafts. above all, we also optimize the shafts structure

    針對實體結構存在小角度問題給網格劃分帶來的困難，本文對結構進行了必要的簡化，並通過兩種簡化方式的計算對比，從中選擇了較為合理的一種，使計算結果更為準確。
  2. The computations are often difficult for a particular object.

    對于特定物體的計算往往很困難。
  3. In the process of the construction of electric power industry informational, there are a great deal of historical data which cry for decision support system using technology of data mining ， and it would be used to resolve the pivotal 、 extrusive question. this paper bases on the need of electric power marketing decision support system, discuss a lot of kinds of arithmetic. and choose the fit arithmetic, make progress base on electric power marketing decision support system. design and realize some of the difficult data structure and arithmetic ， and encapsulate them into some api function, from a series of api function for the second exploitation

    電力行業信息化建設積累了大量歷史數據，迫切需要利用數據挖掘技術研發分析決策支持系統，以解決供電企業運營管理中關鍵和突出的問題。本論文根據決策支持系統的需要，對各種演算法進行了一定程度的探討，選擇適當的演算法，進行適當的改進，設計並實現了其中幾個比較困難的數據結構和演算法，並用vc + +把它們封裝成若干個的api函數，形成一系列可供二次開發使用的api函數，並編譯成dll文件。
  4. On the basis of introducing the principle of the tf / ar radar, this paper analyzes the conditions of effectively jamming the tf / ar radar in typical tactical act of hedgehopping, which include the disposition and quantity of electron reconnaissance / jammer, calculates the capability request of equipments in the method of sensor / hand - emplaced jammer, and concludes that it is difficult to jam tf / ar radar at the present time

    摘要在介紹地形跟隨迴避雷達工作原理的基礎上，通過設定典型超低空突防飛機的戰術行動，分析了對雷達實施有效干擾所必須具備的條件，包括偵察干擾機的部署、數量要求等；並計算了在傳感器擺放（投擲）式干擾機模式下對裝備的性能要求，得出了在目前技術條件下，對地形跟隨迴避雷達實施干擾在技術和戰術上都是困難的。
  5. The biochip scan and analysis system scans and analyzes hybridizable signal quickly, parallelly and effectively. nowadays, the scanner and computer accomplish scanning and image processing of biochip separately, which leads to complex structure, inconvenient operation, large size, high price and unpopularity

    目前生物晶元的掃描和圖像數據的處理分析分別是由成像裝置和臺式計算機來完成的，結構復雜，操作繁瑣，體積大，成本高，推廣困難。
  6. In short, it is very hard to quantify the precise irrationality of investors

    簡而言之，準確計算投資者的不理智性是十分困難的。
  7. The asteroids are the most important small bodies in the solarsystem, and they mainly lies in the two locations - a main belt between the mars ' s orbit and the jupiter ' s and the near - earth space. the most feature of the orbits of near - earth asteroids ( neas ) is that the semi - major axes of the orbits are nearly equal to that of the earth or the perihelia distances are approximate to or even less than the mean distance between the sun and the earth, thus they could move into inside of the earth ' s orbit, so that they might close approach or even colliside with the earth ( or other planets, such as the venus, the mars, etc. ). the characteristic brings about some difficulties in the numerical research during their orbital evolution, which leads to the failure of the normalization technique in the general removal impact singularities of celestial mechanics methods and the symplectic algorithm which is successfully applied to the investigation in quality. by comparing the computation effects of several common numerical methods ( including symplectic algorithm ), and considering the nature of the movement of the small bodies, the corresponding treatments are provided here to improve the reliability of the computation

    小行星是太陽系最重要的一類小天體，主要分佈在兩個區域；火星和木星軌道之間的一條主帶和近地空間.近地小行星軌道的最大特點是其軌道半長徑與地球軌道半長徑相近，或近日距離接近甚至小於日地平均距離，其運動可深入到地球軌道的內部，這將導致該類小行星與地球（還有金星、火星等）十分靠近甚至發生碰撞.這一特徵給其軌道演化數值研究帶來一些困難，包括天體力學方法中一般消除碰撞奇點的正規化處理以及對定性研究十分成功的辛演算法都將在不同程度上失效.通過對幾種常用數值方法（包括辛演算法）計算效果的比較，根據小天體運動自身的特性，給出了相應處理措施，從而可提高計算結果的可靠性
  8. This article has studied the deficiency and shortcoming of various kinds of methods of the parameter measurement of transmission line at present, proposed the measurement under operation on the basis of gps, researched gps application way and error that may appear in the power system synchronal sampling, put forward the parameter computing technology based on the information of both sides of transmission line, which solved some problems that exist in the parameter measurement, especially the problem that exist in the zero - sequence parameter measurement of transmission line with mutual inductance

    本文研究了目前輸電線路參數測量的各種方法，分析了其中存在的不足和缺點，提出了基於gps的輸電線路參數在線測量方法，研究分析了gps在電力系統同步采樣中的應用方式以及可能出現的誤差，在同步采樣的基礎上提出了基於雙端信息的線路參數計算方法，較好地解決了輸電線路參數測量中存在的一些問題，尤其是多回互感線路零序參數測量困難的問題。
  9. Firstly, a representative wind and wave model, which could both simulate the main characteristics of wig over sea waves and be suitable for numerical calculation, is presented. the model completely considers the fully nonlinear effect of wave surface on the wavy air flow, separates the disturbance of wave surface from the wing - air wave interaction flow, and overcomes the numerical calculation difficulties due to the large difference of dimensions between wing and water waves

    首先針對機翼在風浪中的非定常非線性氣動力問題，提出了一個既能夠反映風浪場主要特徵又適合於數值計算的風浪場模型，該模型完整地考慮了波浪表面對氣流場的全非線性影響，使波面對流場的擾動分離出來，消除了機翼和波浪幾何尺度上的巨大差異帶來的數值計算上的困難。
  10. In order to calculate difficult transportation cost between plants and distribution centers in the fitness value function, flow prediction algorithm was presented to find an minimum - cost flow patterns on an network composed of plants, consolidation centers and distribution centers with concave transportation costs and to obtain the appropriate fitness value

    為了解決適應度函數中的工廠與分銷中心之間的運輸成本計算困難的問題，提出了流預測演算法，用於確定產品在工廠、集貨中心和分銷中心構成的凹費用流網路中的最優運輸路徑，進而獲得適應度函數值。
  11. According to the facts of chemical spill accidents in waterway transport, systematic analysis is made on the suitable dispersion models and source strength calculation models of multiple spilled substance, resource and environment respectively, so as to decide the poison and fire & explosion danger area of an accident through the way of dispersion simulation. to resolve the problem to the calculation of spill amount from tanks, calculation formulas on various types of tanks were worked out ; at the same time, research is carried out on the source strength calculation of mixtures with regard to the possible spillage of chemical mixture in waterway transport. for the sake of convenient application, a computer software for the simulation of dangerous area is developed which can provide great assistance to the decision - making of emergency response and reach the target of reducing the damage of the life, property and environment to the smallest degree

    根據水運化學品泄漏事故的具體實際，針對各種泄漏物質、泄漏源和環境條件研究了各自適用的擴散模式和源強計算模型，以便通過擴散模擬確定事故的毒害和火災爆炸危險區域；為解決儲罐泄漏量計算困難的實際問題，推導了適用各型儲罐、液艙的泄漏量計算公式；針對化學品水路儲運泄漏事故中泄漏物質可能會以混合物形式存在的情況，探討了混合物的蒸氣釋放源強計算；為方便實用，開發了蒸氣擴散危險區域模擬計算機軟體，從而為事故應急決策提供了有力的輔助支持，以達到盡可能減少人員傷亡和財產損失，減輕環境污染的目標。
  12. But when the classical centralized kalman filter ( ckf ) is used in this kind of integration, there will be two disadvantages : firstly, there exists real time computation difficulty ; secondly, the fault tolerance capability is poor. once one of the subsystems breaks down, all the other subsystems are affected

    然而，如果按傳統的集中式卡爾曼濾波器設計組合導航系統時會產生兩個缺點：一是實時計算困難，計算量將以維數的三次方劇增；二是容錯能力極差，一旦某一子系統出現故障，所有正常工作的子系統都會受到污染。
  13. Electrical power system fault calculation is an important reference of electric equipment choice, electric network design choice and relaying protection setting calculation. now the highvoltage network is very complicated, its mode of operation is multivariant. it is difficult to deal with handwork

    現今的高壓電網，結構復雜，運行方式變化繁多，需要計算的故障點多，採用傳統的手工方法計算困難極大，既不符合實際，也不能滿足快速精確計算的要求。
  14. For a detailed overview of some of the interesting computational hurdles facing those involved in genome sequencing, read

    對於一些在基因組測序（ genome sequencing ）中所面臨的、有趣的計算困難的詳細概述，請參閱「
  15. This paper brings forward a quick algorithm theory of least absolute deviation estimator ( lad ) in order to solve the difficult problem of the calculation of lad

    本文針對最小一乘估計計算困難的問題，提出了最小一乘估計的快速演算法理論。
  16. Least squares regression is vulnerable to singular point ; least absolute deviations can overcome this shortcoming but difficult in calculation

    摘要採用最小二乘法進行回歸分析，容易受到奇異點的影響；最小一乘法雖能很好地克服這一缺陷，但又存在計算困難。
  17. ( 2 ) the study on lateral resistance of lgsfcbw. because the lateral performance of the lgsfcbw is quite complex and dependent of many factors, theoretic calculation is unpractical and study is on the basis of test all over the world

    （ 2 ）輕鋼龍骨復合承載墻體（ lgsfcbw ）抗側性能研究： lgsfcbw抗側能力影響因素眾多、理論計算困難，各國均以試驗研究為基礎而無合適的公式。
  18. This 3d modeling method overcomes the limitations of traditional algorithm which is extremely complicated, difficult in combination operation, hard to build the correct topologicai relation among data and solves a series of technical difficulties such as model interaction and division. therefore it greatly facilitates and simplifies the construction and processing of 3d model

    該建模方法克服了傳統演算法建模數據結構過于復雜，交接拼合計算困難，難于建立模型控制點之間正確的拓撲關系等局限；解決了模型交互、任意剖切等技術難題，大大方便和簡化了三維模型的建立和后續處理過程。
  19. Collaborative optimization method is studied in depth, the causes leading to computational difficulty of this method are discussed by optimization theory and computation examples, and improve method which may solve this problem is presented. based on the comparison of several optimization methods and the characteristics of modern rocket - ramjet, step optimization pattern - a new integrated design mode is presented and is used to realize integrated design of rocket - ramjet. inner and outer fiowfield of a certain integral rocket - ramjet missile is simulated numerically using n - s equation

    （ 2 ）系統地研究了導彈總體優化設計方法，探討了多學科設計優化的原理、框架結構、具體表述形式，深入研究了協作優化方法的原理，從優化原理和算例兩方面討論了造成協作優化方法計算困難的原因，提出了可能克服這種計算困難的改進途徑；在比較幾種優化方法的基礎上，針對新一代沖壓式導彈的特點，提出了一體化設計的模式? ?分步優化模式，進行了整體式火箭沖壓發動機反艦導彈總體參數的一體化設計。
  20. The main purpose of this paper is to research on the diagnosis of the analog circuit with tolerance based on parameter identification, it try to find a novel method of the fault diagnosis of the analog system. in this paper, a procedure for the multifrequency fault diagnosis of analog circuits is presented. generally speaking, for the diagnosis equations are nonlinear, it ’ s very difficult to solve them with high precision

    本文的研究重點在於具有容差模擬電路故障診斷的參數識別方法，探索解決模擬電路故障診斷問題的新途徑，介紹了由電路結構來提取故障診斷方程的多頻支路和多頻節點方法，由於故障診斷方程一般情況下是非線性的，因此，傳統的非線性方程求解方法存在精度不高，計算困難的缺點。
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