定向图

The angled surfaces on this part, for instance, need to be located relative to the datum reference frame. If only angularity had been applied, the drawing would be incomplete.

例如，对于如图所示的零件的斜面来说，需要控制相对于基准的位置，若仅仅给出倾斜度的定向要求，图纸上给出的公差要求是不完整的，可选择给出面轮廓度的公差要求。

A conclusion is drawn that the velocities of nanoparticles is identical to the velocities of speckles in Fresnel region.

进而构建了定向纳米流体实验装置，获得了时间间隔很短的序列散斑图。

In Chapter One,we find the relationship between strong open set condition , Hausdorff dimension,the positivity of the Hausdorff measure and β space of graph-directed self-similar sets in complete metric spaces.

在第一章中，我们讨论了在度量空间中，图定向自相似集的强开集条件、Hausdorff维数，正的Hausdorff测度和β空间之间的关系。

Except one case, we can prove that the new graph operation preserving fully orientability.

我们会证明除了一个特殊的未知情况之外，这个新的图运算能保持图的可全定向性质。

We discuss the following graph operations that preserve fully orientability: the union of two graphs whose intersection is an edge, addition of a path of length at least 2 and addition of an edge between two vertices of degree 2 with a unique common neighbor.

我们会讨论下列几种能保持可全定向性质的图运算：将两个交集为一个边的图取联集、加入一个长度至少为2的路径及将两个度数为2且仅有一个共用邻点的不相邻点相连。

Motivated by this problem, in this paper, we give an upper-embeddable property of one kind of digraphs in orientable surfaces.

受此问题的启发，本文给出了一类有向图在可定向曲面上是上可嵌入的性质。

Finally,further generalizes the given graphs to obtain a new type of graph and gives a description about genus distribution of orientable embeddings for this type of graph.

最后把上面图类进一步推广，得到了一类更一般的图，并对其可定向嵌入的亏格分布进行了刻画。

The errors and area limits caused by the lunar curvature were avoided in this model established under the Selenocentric Orthogonal Coordinate System, the accidental errors of exterior line elements were reduced by orbit fitting and interpolation, the polynomial orders of systematic errors in satellite orbits were decreased with their expression in the flying coordinate system moving and rotating with satellites, and the reliability of exterior orientation solution was enhanced under the condition of sparse and low accuracy control points by appending constraint of orbit and attitude parameters.

该模型通过在月心直角坐标系进行影像空中三角测量来消除月球曲率引起的误差和测图范围限制，通过轨道形状的拟合与插值来减小摄影时刻轨道位置的偶然误差，在飞行坐标系中建立轨道修正模型来减少定向参数的数目，对轨道和姿态增加约束条件来提高月面控制点数目稀少及精度低条件下外方位解算的精度与可靠性。

The simulation of the vector control system for rotor flux orientation is studied in this paper. The modeling and simulation of the vector control system of speed and flux closed-loop with the torque inside loop are completed by applying electrical principles and the toolbox of Simulink and Power System in the Matlab software. The paper mainly introduces the modeling of the speed adjustment system and the setting of parameters of the controller. The obtained results of the simulation are close to actual situation, which proves the correctness of the modeling.

文章对按转子磁链定向的矢量调速系统进行了计算机仿真研究，运用Matlab的Simulink和Power System工具箱及面向系统电气原理结构图的仿真方法，实现了带转矩内环的转速、磁链闭环矢量控制系统的建模与仿真；重点介绍了调速系统的建模和调节器参数的设置，给出了矢量交流调速系统的仿真模型和仿真结果，仿真结果非常接近实际情况，说明了仿真模型的正确性。

In order to facilely perform testing on C or C++ programs, a prototype tool called CppTest is designed and implemented. It can employ three levels'testing, namely (1) structural testing in method level by analyzing program's constructs, instrumenting probes, redirecting I/O stream, etc.,(2) state-based class level testing through modeling state transition behaviors using an extended finite state machine from the class specifications, and (3) system level black-box testing with some traditional strategies such as equivalence partitioning and boundary-value analysis.

以目前普遍使用的C/C++程序作为测试对象，实现了一个能进行方法级、类级和系统级三个级别测试的原型系统CppTest：基于程序CFG图分析、探针插装和I/O重定向等技术，实现方法级结构性测试；按照需求规约运用EFSM对类的状态转换行为进行建模，并依此自动生成测试用例集，实现基于状态的类测试；在系统级别上，运用等价类划分、边界值分析等常规策略进行黑盒测试。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。