The line depicts the diameter of the circle and the two small circles represent two planets at their greatest distance from each other.
这根线描述了圆的直径，以及两个小圆代表了两个行星之间的最大距离。
Circular cylinder is a basic move along a straight line trajectory can be considered as a collection of the same diameter of the circle, if the horizontal section of film, then it is a straight line.
圆筒是基本的圆沿着直线移动的轨迹，可以考虑为相同直径的圆的集合，如果水平放置节片的话它就是直线。
The axis of a circle is its diameter.
圆的对称中心线就是直径。
The measuring instrument can measure addendum circle and dedendum circle diameter of odd-tooth gears.
这种测量工具用以测量奇数齿齿轮的齿顶圆和齿根圆直径。
Cut the yarn approx. 1 "longer than the diameter of your circle backer."
将毛线剪为比圆直径约长1英寸的线段。
A diameter passes through the center of a circle.
直径从圆心穿过。
The diameter and the circumference of a circle correlate.
圆的直径与圆周互相关联。
The diameter of actual tangent circle is an important parameter for safety of boiler, the residual rotation is the key factor of flue gas temperature deviation at furnace exit.
实际切圆直径是锅炉稳定安全运行的一个重要参数，炉膛出口残余旋转是造成烟温偏差的主要原因。
An example is a bolt hole circle, in which the diameter of the bolt circle, the spacing of thebolt holes, and other parameters must be specified.
例如螺栓孔圆形，螺栓圈的直径，其中必须指定螺栓孔和其他参数的间距。
The size (diameter) of the circle of confusion depends simply upon how far the film is from where that particular detail of the image is focused.
弥散圈的大小(直径)简单地决定于胶卷和该部分物体聚焦的地方有多远。
This paper introduces the approximate calculation of components and compound section of vertical vessel lug support with stiffening ring and the selection of anchor bolt circle diameter.
介绍了立式容器壳体刚性环耳式支座构件及组合截面的近似计算过程，并对地脚螺栓中心圆直径的选择作简要分析。
The experiments conducted on the diameter of circle and coordinates of circle center reveal that this method is practical.
通过对圆的直径和中心坐标的测量实验，结果表明，该方法切实可行。
The diameter and the circumference of a circle correlate.
圆的直径与圆周有相互关系。
Even though the bottom one takes up the least amount of space in this optical illusion, it is the flattest circle and therefore has the largest diameter.
尽管下面的圈看起来占的地方最小，但是它是最平坦的，也就是它的直径是最大的。
This paper presents a digital method for calculating the diameter of a scan circle by measuring the phase of the signal.
介绍了一种运用相位法测量扫描圆直径的数字测试方法。
A digital method for calculating the diameter of the scan circle by measuring the phase of the signal was discussed.
介绍了一种运用相位法测量扫描圆直径的数字测试方法。
The structure, constitute, working principle, and design feature of automatic welding system which pro- duces extra- thin, large diameter, long tube, and longitudinally or circle weld are introduced.
介绍了超薄壁，大直径，长筒体，纵、环缝自动焊接系统的结构、组成、工作原理及设计的主要特点。
The spiral angle of graduated circle was rough estimated by measuring the addendum circle diameter and modified on milling machine.
测量齿顶圆直径估算分度圆螺旋角，用分度头在铣床上修正分度圆螺旋角，并进行误差分析。
Pitch diameter (d) is the diameter of the pitch circle.
节圆直径(D)：节圆直径是节圆所在圆的直径。
The paper briefly analyzed some problems most frequently occurred in the processing and measurement of big diameter small half circle parts, and suggested some concrete solutions.
结合在制造配件过程中遇到的大直径小半圆孔加工和测量方面的问题进行了简单的分析，提出了具体的解决方案。
The systematic error of the circle reading micrometer is an important factor to influence on the accuracy of the diameter correction and of the position measurements of the circle.
度盘测微器系统误差是影响度盘对径改正精度和度盘位置测定精度的重要因素。
The relationship between the vibration modes of node-diameter and node-circle and the law of their emerging are investigated.
分析了节径振型和节圆振型间的关系和出现规律。
A suit of the automatic checkout equipment used for the axle parts is designed. The equipment can check automatically the diameter, circle degree and circle jumpiness.
设计了一套轴类零件的自动检测装置，该装置能检测轴类零件的直径、圆度和圆跳动。
This paper has given a pithy analytic Proof of "principal diameter circle"Theorem. And on the basis of the thought of the theorem. We obtain two theorem about ellipse normal.
本文对主经圆定理给出了一个简练的解析证明，并且在此定理的思想基础上，得到了椭圆上法线的两个性质定理。
Digital image-processing technology is used to analysis the fringe information, withdraw the center grain, measure the diameter of interference circle.
文章介绍了一种应用数字图像处理技术进行等倾干涉测量的方法。
The end of diameter plate moves along the circumference trace and its circle center is fixed.
划圆是通过直径片的端点沿圆周轨迹转动，其圆心的位置是固定的原理而实现的。
Said diameter plate composed of two pieces is installed in the slot on inner side of compasses' disk. The slide valve and turning handle are on the diameter plate for drawing circle precisely.
圆规盘内侧壁设计了直径片转动槽，直径片分两片组装进入转动槽，直径片上设计有滑动阀与转动柄，从而达到精确划圆的目的。
Said diameter plate composed of two pieces is installed in the slot on inner side of compasses' disk. The slide valve and turning handle are on the diameter plate for drawing circle precisely.
圆规盘内侧壁设计了直径片转动槽，直径片分两片组装进入转动槽，直径片上设计有滑动阀与转动柄，从而达到精确划圆的目的。
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