计算的

The robust and precise method consists of initial main direction extraction based on the direction histogram of structure tensor and precise direction detection on vectorized edge image.

该算法基于结构张量计算的方向直方图探测初始主方向，并根据矢量化的边缘计算精确的方向角，使得探测过程稳健、结果准确。

Though the simulation result is not accurate highly in part operating domains, the pressure and velocity distribution and other flow characteristics in whole flow path in all operating domain is also useful to analyze flow problems in dredge centrifugal pump.

虽然在部分运行工况模拟计算不是很准确，但计算的各工况压力、速度分布以及整个流道的其它流动特性，对分析挖泥泵的各种流动问题很有帮助。

Application research has been done in the areas of complex functions in the continuos space, and Traveling Salesman and Task Scheduling, which are the typical issues in combined optimization.

因此对进化计算的研究具有重要的理论意义和强烈的实际应用背景目前进化计算主要有三种研究方式：遗传算法，进化策略和进化规划。

The calculation formulas of friction losses in prestressed ring concrete construction is raised by the theory as compared with experiment.

通过理论和实验相比较，导出环向预应力摩擦损失的计算公式，该公式简单易算，避免使用传统的指数形式，且计算的结果与实验结果吻合较

Compose the theory calculating results with the experiment data, it sug gests the theory values are correct.

理论计算的结果与实验室测试数据的对比证明了计算结果的正确性。

The results compared with theFEM results given by MSC/NASTRAN show that the PC cluster set up in this paperis reliable and the algorithms presented are efficient,and the solution of stresses ismore accurate tan FEM.Parallel computing can be served as a powerful tool inexpanding the application of BEM and will accelerate the development of BEM incertain extent.

同时还说明边界元法与并行计算的手段相结合，能够发挥其计算精度高的优势，拓展边界元法在工程实际中的应用范围。

The simple calculation for stress isolines is brought about by a spline interpolation method,as well as the distributions of stress trace are given,which can provide more simple and direct stress field for designers.

混凝土重力坝应力计算的主要方法是理论计算法，分为材料力学法、弹性理论法和弹塑性理论法，但材料力学法至今仍被认为是计算重力坝应力和设计坝剖面的基本的常用方法[1，2]。

The appropriate methods for statistic line loss computation with the system and for detecting bad data were discussed.

第二，在理论线损计算方面，结合中山电力系统的实际情况，开展了基于潮流算法的在线理论线损计算的研究。

Through comparing a lot of algorithm used in the matrices' eigenvalue calculations, we obtained the best algorithm for large scale sparse matrice.

通过比较一系列的用于矩阵本征值计算的方法，得到了用于大规模稀疏矩阵本征值计算的最好算法。

The proposed method can work well under asymmetry element parmeters,and it is not necessary to consider the phase shift of ideal transformer or using multi-port net theory,which make the proposed method more applicable and simplify the calculat...

相分量算法不要求电力系统元件参数对称或循环对称、不利用多端口网络理论及理想变压器的移相，拓宽了故障计算的适用范围、简化了编程难度，并可推广到处理诸如线路换位不完全的参数不对称等其他电网不对称计算。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。