圆心

An algorithm of finding minimum circumscribed circle for the analysis of coaxial errors is proposed. The aim of the analysis together with FEM modeling is to overcome the difficulty of data collection on machinery in operation. An axis is divided into n-sections.

针对工作状态下机械零部件同轴度误差数据采集难的特点，结合有限元后处理，提出了一种通过求解一组投影圆心坐标的最小包容圆来实现分析同轴度误差的计算方法。

The temperature on the outer surface of the buried pipe and on the concentric circle around the buried pipe shows a sinusoidal profile.

地埋管外土壤沿与地埋管同圆心的圆周上温度呈正弦曲线分布。

The twelve members of the council had a viewstand all to themselves at the edge of a broad magenta circle, concentric to the shuttle's touchdown zone.

其中12个委员会成员站在红圈的边缘，以航天飞机的着陆点为圆心。

This theory system is guided by the logic of "labor-value-distribution" gradually, as follows: on the basis of defining creative labor and dealing with coherent issues, this thesis divided the generalized creative labor into concentric circle centered on the inner region of creative labor.

该理论体系是沿着"劳动——价值决定与价值构成——价值分配或产品分配"的逻辑步步推进的。具体表现为：在创造性的界定创意劳动概念以及完成一系列相关问题的基础上，本文按照现实中创意产业的具体特征，将广义创意劳动划分为一个以核心层创意劳动为圆心的圈层结构。

Shang Dynasty was the initial period of urban development of China and the cities and countryside have not been split up, thus the primitive settlement shape has still been preserved, then these characteristics were formed: taking the palace area as the centre, the independent unit areas of comprehensive function surrounding and protecting the palace area. The city is an irregular concentric circle with the palace area as the center and expresses the thought of "the community".

商殷之时是我国城市发展的初期阶段，城乡还未分化，仍保有原始聚落的形态，形成了以宫殿区为中心，各个具有综合功能的独立单元区域拱卫的特点，城市平面也呈现出以宫殿区为圆心的不规则同心圆，表达了一种"群体"的意念。

Port entry area shall be 100% of the mating pipe port area and reduce concentrically down to that shown on approved submittal drawings.

阀门的进口流道截面应该与管道流道截面100%相同，然后沿着圆心逐渐缩小到经过认可的图纸所指示的位置。

Mathematics: Understands and applies basic and advanced properties of the concepts of geometry; Use the Pythagorean theorem and its converse and properties of special right triangles to solve mathematical and real-world problems; Understands the basic concepts of right triangle trigonometry (e.g., basic trigonometric ratios such as sine, cosine, and tangent); Uses trigonometric ratio methods to solve mathematical and real-world problems (e.g., determination of the angle of depression between two markers on a contour map with different elevations); Uses properties of and relationships among figures to solve mathematical and real-world problems e.g., uses the property that the sum of the angles in a quadrilateral is equal to 360 degrees to square up the frame for a building; uses understanding of arc, chord, tangents, and properties of circles to determine the radius given a circular edge of a circle without the center

数学：理解和应用几何概念的初级和高级特性；用毕德哥拉斯定理、逆定理以及特殊直角三角形性质解决数学的和现实世界的问题；理解基本的直角三角形三角比；运用三角比方法解决数学的或现实的问题。（等高线图上的两个标记之间的俯角确定）运用形体之间的关系及其属性解决数学的或现实的问题（利用四边形内角和等于360度来为建筑物框架取正，运用弧，弦，切线和圆的性质确定缺少中心的一段圆弧的圆心

By adopting the high performance of directional property and brightness of laser, a diagram for establishing a plumb datum line with the method of rotation and circle center tracking is presented.

利用激光本身的方向性好、亮度高等优点，提出以激光垂准仪为基本部件，用旋转跟踪圆心法建立铅垂基准线的方案。

Based on their technical skills and artistic creativity, they sought a new style of performance to take diabolo dance beyond imagination.

1986年，一群年轻表演艺术家，以扯铃为圆心，剧场创意为半径，开始探索一个全新的表演型式，并引领观众进入一个超越想像的舞台世界。

In the figure, AB is a diameter of the circle with centre O and radius 6 cm.

图中所示为一圆心为O 而半径为 6 cm 的圆。AB 为圆的直径。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。