计算困难 meaning in English
dyscalculia
Examples
- 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，如果按传统的集中式卡尔曼滤波器设计组合导航系统时会产生两个缺点：一是实时计算困难，计算量将以维数的三次方剧增；二是容错能力极差，一旦某一子系统出现故障，所有正常工作的子系统都会受到污染。 - 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
为了解决适应度函数中的工厂与分销中心之间的运输成本计算困难的问题，提出了流预测算法，用于确定产品在工厂、集货中心和分销中心构成的凹费用流网络中的最优运输路径，进而获得适应度函数值。 - 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
该建模方法克服了传统算法建模数据结构过于复杂，交接拼合计算困难，难于建立模型控制点之间正确的拓扑关系等局限；解决了模型交互、任意剖切等技术难题，大大方便和简化了三维模型的建立和后续处理过程。 - 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 )系统地研究了导弹总体优化设计方法，探讨了多学科设计优化的原理、框架结构、具体表述形式，深入研究了协作优化方法的原理，从优化原理和算例两方面讨论了造成协作优化方法计算困难的原因，提出了可能克服这种计算困难的改进途径；在比较几种优化方法的基础上，针对新一代冲压式导弹的特点，提出了一体化设计的模式? ?分步优化模式，进行了整体式火箭冲压发动机反舰导弹总体参数的一体化设计。 - 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
本文的研究重点在于具有容差模拟电路故障诊断的参数识别方法,探索解决模拟电路故障诊断问题的新途径,介绍了由电路结构来提取故障诊断方程的多频支路和多频节点方法,由于故障诊断方程一般情况下是非线性的,因此,传统的非线性方程求解方法存在精度不高,计算困难的缺点。