A diameter passes through the center of a circle.
直径从圆心穿过。
Abstract: this paper designs a measuring instrument which can measure addendum circle and dedendum circle diameter of odd_tooth gears and can define all main parameters of gears.
文摘：设计了一种测量工具，用以测量奇数齿齿轮的齿顶圆和齿根圆直径，以便确定齿轮的主要参数。
The diameter and the circumference of a circle correlate.
圆的直径与圆周互相关联。
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。
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 diameter and the circumference of a circle correlate.
圆的直径与圆周有相互关系。
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。
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。
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。
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。
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