查询词典 shortest path problem

To easily form preconditional curvilinear paths within the trust region subproblem, we employ the stable Bunch-Parlett factorization method of symmetric matrices and use the unit lower triangular matrix as a preconditioner of the optimal path and modified gradient path.

使用对称矩阵的稳定Bunch-Parlett易于形成信赖域子问题的弧线路径，使用单位下三角矩阵作为最优路径和修正梯度路径的预条件因子。

The paper also discusses the geometric sizes of magnetic path and the choice of magnetic materials,and contrasts the test results from the magnetic field flux density of two kinds of magnetic path and har...

通过对比两种磁路结构的检波器，讨论了磁路的几何尺寸和磁性材料的选用，并比较了这两种磁路的磁通密度及谐波失真的测试结果，说明了在检波器磁路设计中，均匀磁场可以降低输出信号中的谐波失真

By default neither this directory nor your main Python executable are on your PATH so you will not be able to run Python itself or any Python scripts from a Command Prompt unless you first navigate to the correct directory or specify the full path each time.

默认情况下，Python安装目录和主Python可执行文件都没放在PATH中，因此，你将无法在命令提示符中运行Python或任何的Python脚本，除非每次你首先都浏览到正确的目录或指定完整的路径。

If it avoids scattering over one mean free path, the odds favor scattering by the time it traverses another mean free path, and so on.

如果光子在一个平均自由路径中不被散射掉，它也会在第二个平均自由路径中或以后的平均自由路径中被散射掉。

The uncertainty of travel time of road network is depicted by means of scenario union firstly,then a path finding modal applied minimax theorem is constructed for obtaining most reliable path of all scenarios.

该方法通过场景集描述网络旅行时间的不确定性，应用Minimax理论构建求解所有场景下可靠路径的数学模型，并设计了问题求解算法，分析了算法的时间复杂性，最后通过典型算例对算法进行了验证。

It is found that the upper limit of the operational frequency bandwidth along the short great circle path which crosses the south-polar, region is approximately in accord with the calculated MUF and the other one along the long great circle path which crosses the north- polar region is different from the calculated MUF.

结果表明，经过南极区的短大圆路径的通信频段上限与计算的MUF基本相符；经过北极的长大圆路径的通信频段上限与计算的MUF有偏差。

Long-path multiple: A seismic reflection whose travel path is much longer than required for a primary reflection from the deepest interface reached.

全程多次反射波：传播路径比来自最深界面的一次反射波路径长得多的地震反射波。

They will help you navigate the path of life but they are not the path itself.

他们将帮助您浏览生活的道路，但他们不是路径本身。

When voltage is applied and there is a path for the current, electrons move from the negative terminal along the path to the positive terminal.

若施加电压且有路径给电流，电子就会从负极沿著路径移向正极。负极排斥电子，而正极吸引电子。

Looking back from this path in a northwestern direction one can obtain a magnificent view of the wooded heights which stretched across the Lushan Valley. small path branched off to the northeast and led steeply to a charcoal kiln, then turned in a northwesterly direction past a group of temple ruins to the side valley.

从这条路上往西北方向看，你可以看见高大的树木布满了整个山谷，有一条东北方向的陡峭的岔路通向炭窑，然后又朝西北方经过一些寺庙的遗迹通向侧谷。

He's a pretty westernised kind of guy.

他是一个非常西化的人。

National spirit is the moral kingpin for a nation to realize common ideal and goal.

一、中华民族精神的基本内涵党的十六大报告指出：在五千多年的发展中，中华民族形成了以爱国主义为核心的团结统一、爱好和平、勤劳勇敢、自强不息的伟大民族精神。