查询词典 tracing point

Traditionally, a surface is usually scatted in an array of 3D data points which are topologically connected by rows and columns to form a rectangular mesh. This method can't meet the requirement of description and measurement for some complex surfaces. On the basis of tracing border points, a new method is proposed to deliver 3D data points of surfaces, which are topologically constructed with optimum rectangular and triangular mesh. In order to measure surface efficiently and safely with NC machine, an optimization of measurement paths is proposed to avoid interference between the measuring tool and the surface with holes. The curve design is the basis of surface modeling.

数控测量技术的发展为测量自动化、集成化、智能化提供了可能，而对于复杂曲面的自动测量规划则是测量技术中的难点问题，平行截面等数目测点分布和四边拓扑测点分布规划方法，不论在测点分布的合理性上还是在网格结构的优化方面，均难以满足形状或边界较复杂曲面的离散化描述和曲面造型的要求，为了实现任意拓扑曲面的自动测量，本文对复杂曲面的合理离散化描述和自动测量问题进行了研究，提出了基于边界跟踪、优化网格的测点自动分布规划和四边、三角混合网格的生成方法：同时对具有孔洞或测量干涉凸台等非完整曲面的测量路径优化问题进行了研究，提出了路径优化方法。

Many of the mills and processing plants use 480 V distribution , with 2300 V for very large secondaries are often delta-connected so that plant operations may continue even if one phase becomes grounded , but these systems are always equipped with ground-indicating lights , and usually have special fault-tracing equipment so that phase-to-ground faults can be detected and isolated.

很多的纺织厂和加工厂使用480 v的分布，与2300年第五非常大的中级往往三角洲连接，使植物的行动可能会继续，即使一个阶段，成为接地，但这些系统都是配备的地面显示灯，和通常有特殊故障追踪设备，使第一阶段到接地故障可检测和孤立。

An instrument for copying a plane figure to a desired scale, consisting of styluses for tracing and copying mounted on four jointed rods in the form of a parallelogram with extended sides.

缩放仪一种按所需的比例复制平面图片的仪器，由用于描绘和复制的描画针组成，描画针置于四根有活节的杆上，四根杆构成可调整边长的平行四边形

An instrument for copying a plane figure to a desired scale, consisting of styluses for tracing and copying mounted on four jointed rods in the form of a parallelogram with extended sides.

缩放仪一种按所需的比例复制平面图片的仪器，由用于描绘和复制的描画针组成，描画针置于四根有活节的杆上，四根杆构成可调整边长的平行四边形 turning or twisting around。四周转或扭。

Motif research explores the primitive morphology of human spiritual retrospection and basic behavior appeared again and again by a way for tracing to origins with macroscopic viewpoint and systemic research method, at the same time, investigates the theologizing and integration of these spiritual retrospection and basic behavior.

母题研究通过追根溯源的方式、以宏观的研究视角和系统的研究方法探求这种反复出现的人类精神现象和基本行为的原初形态及其在文学史中的历时性流变与整合。

Effects of the experiment were evaluated by studies of (1) preoperative and postoperative gastric analyses,(2) retrograde tracing of horseradish proxidase to vagi, and (3) acetylcholinesterase activity of gastric tissue.

通过手术前后的胃液分析，术后（2周～4个月）辣根过氧化物酶对胃壁神经的逆行追踪及胆碱酯酶活性（AChE-activity）的测定来评价该设计手术的效果。

Research groups of Mayo Medical Center, by long-time tracing and researching, find yips which used to be concluded psychological pressure is now proved to be highly related with physical disorders. Not anxiety, as everybody thought, but "focal dystonia" is the major cause of yips.

美国梅佑医学中心的研究团队，经过长时间的追踪与研究，证实发现以往认为导致高球员推杆失常的现象是心理压力所造成；而最新的研究结果，证明易普的产生，所谓的「局部肌张力不全症」与生理失调有绝大的关联；应为导致高球员产生易普症状的主因，而非一般认为临场的焦虑症。

Owing to the lack of academic research and the perfection of legislation, it is very difficult to judge and handle some specific cases in the judiciary practice. Tracing back to its origin in history, drawing on the experience of other states and standing on the foothold of Chinese condition, the author believes that the official act, as a law term, has meaningful connotation.

但就目前研究现状来看，虽然多数学者根据《人民警察法》中一些对警察职务行为的规定，把职务行为与正当防卫和紧急避险并列为一种法定的排除犯罪性行为，但是，对职务行为的研究远远落后于对后二者的关注和热情，相关的论著和文章也是寥寥可数。

My whole art department is run on tracing paper .

我们整个艺术部都用的是描图纸。

The prototype system considers the geometry of the building, the position of the source and receiver, and the acoustic properties of the sound transmission (the sound absorption coefficient of the walls and the temperature of the environment). The system then builds the beam tree by beam tracing, and finds all possible paths of the transmission and reflection. All sound paths are then traced to compute the sound obtained by the receiver.

本系统利用建筑物的几何空间、音源与接收者的资讯，考虑建筑材料的吸音系数、环境的温度等声学相关属性，使用光束追踪法建立光束树，寻找各种可能的穿透与反射路径，建立声音的路径模型，并且计算声音的衰减，处理声音的音响输出，来模拟接收者所听到的声音与回响。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。