查询词典 metrically convex subset

In this study, a commercial CAD/CAM Software is used to plan and generate the multi-axis tool path, and a table rotating/tilting type five-axis machining center is used to perform the experimental machining operation. The material of the die studied is NAK 80 die tool steel, and the geometries are modeled as concave and convex spherical surfaces. Milling parameters considered are spindle speed, feed rate, and different types of cutting tool path. The experimental results show that the surface roughness for concave spherical surface is about 0.247 μm and roundness is about 0.0283 mm and the surface roughness for convex spherical surface is about 0.250 μm and spherical roundness is about 0.0551 mm under the cutting conditions mentioned in this study.

本研究的实验方法与步骤包括利用商用CAD/CAM系统针对实验对象规划三轴/五轴同动加工路径，并经后处理程式转换，在本实验室之平台倾斜/旋转型之五轴加工机上进行实验，实验对象为NAK80模具钢材料之凹与凸球形曲面之加工，此外考虑的切削条件有主轴转速、进给速度、加工路径等，在本研究所设定之最佳切削条件下，凹球形曲面之真圆度约为0.0283 mm，粗糙度为0.247 μm，而在相同切削条件下，凸球形曲面之真圆度为0.0551 mm，粗糙度为0.250 μm。

Random circle and sphere aggregate models, convex polygon and convex polyhedral aggregate models are separately adopted in the paper to simulate the flexural fracture process of concrete specimens in view of meso-mechanics.

本文分别采用随机圆形骨料、球骨料与多边形、多面体骨料模型，通过对全级配大坝混凝土试件弯拉破坏过程的细观数值模拟，对比分析了不同骨料模型形态对计算结果的影响，探讨了用球形骨料或圆形骨料简化实际碎石骨料的有效性。

It respectively constructs quasi projection-separation facet sets of two convex polytopes while their orthogonal projection on the centerline overlap mutually. Afterward it judges the separation of two convex polytopes by confirming non-overlap in orthographic projection on the centerline or by finding out a projection-separation facet from two quasi projection-separation facet sets, otherwise a collision is judged.

该算法通过判断2个凸多面体在中心线上的正投影不相交，或者分别构造它们的准投影分离面集合，并从这2个集合中找到一个投影分离面，来判断2个凸多面体分离；否则，判断为相交。

From the view of the number of composition series and table subset of order or elementary abelian table algebra is depicted by making use of fundamental theorem on homomorphism of table algebra.

分别从合成列及表基的p阶、阶表子集的数目角度刻画了初等abelian表代数。

The problem of test point selection is modeled as searching for the test point subset with the maximum diagnostic information of the set of all accessible test points of the circuit.

将测点选择问题建模为在全体可达测点集合中选取具有最大诊断信息量的测点子集问题，并用遗传算法对最优测点子集进行搜索。

Dominating set is an important concept in graph theory, which is defined as an a vertexsubset such that every other vertex not in it must be adjacent to some vertex in this subset.

控制集是图论中的重要概念，它定义为图中的一个点集，使得图中其它任何一点都与该点集中的某点相邻。

At last, we will explore the completeness of the algebraic laws with respect to a subset of Verilog and the operational semantics, i. e., if such programs are bisimilar, then they are algebraically equivalent.

最后本文研究了代数语义的相对完备性，即参照前面的操作语义模型，相对于扩展Verilog语言的一个子集而言，我们的代数语义是完备的。

At last, the completeness of the algebraic laws with respect to a subset of Verilog and the operational semantics, i.e., are explored, if such programs are bisimilar, then they are algebraically equivalent.

研究了此代数语义的相对完备性，即参照前面的操作语义模型，相对于扩展Verilog语言的一个子集而言，此代数语义是完备的。

Digital signal processing and analog signal processing is a subset of signal processing.

数字信号处理与模拟信号处理是信号处理的子集。

The Apriori is an algorithm about the generation of association rule. Enlightened by the generation of candidate k-itemsets, k subsets of one item will be first find out, and then connected to get subsets of two items, and finally get the subsets of k-1 items. The algorithm can be used to find out the proper subset and to generate the protasis and apodosis of the association rule.

在关联规则--Apriori算法方面，主要是受Apriori算法中生成候选k项集方法的启发，提出首先找出k个只含1项的子集，然后将它们连接生成含2项的子集，直到最后连接成k-1项的子集为止的寻找真子集并生成关联规则前件、后件的算法。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48