1.
diameter of root circular-arc center circle
齿根圆弧中心圆直径
2.
diameter of tip circular-arc center circle
齿尖圆弧中心圆直径
3.
B.C.D. of anchor (foundation) bolts
地脚螺栓中心圆直径
4.
The cylinder diameter of raceway center(mm)
－滚道中心圆直径(mm)
5.
A straight line segment passing through the center of a figure, especially of a circle or sphere, and terminating at the periphery.
直径穿过一图形，特别是圆形或球形的中心到圆周结束的直线段
6.
Drag to add a circle defined by diameter. Adjustable eccentricity allows for ellipse.
拖动此形状，可添加一个由直径定义的圆。椭圆中允许调整离心率。
7.
diameter of top circular-arc juncture circle
齿顶圆弧衔接点圆直径
8.
diameter of tip circular-arc juncture circle
齿尖圆弧衔接点圆直径
9.
diameter of root circular-arc juncture circle
齿根圆弧衔接点圆直径
10.
The diameter of the inside of a round cylinder, such as a tube.
口径圆柱体内侧圆的直径，如管道
11.
The axis of a circle is its diameter.
圆的轴线是其直径.
12.
limit deviation of root circle diameter
齿根圆直径极限偏差
13.
base diameter of involute helicoid worm
渐开线蜗杆基圆直径
14.
Measure the diameter of this circle.
量一下这圆的直径。
15.
Any two diameters of a circle intersect each other.
圆周内两直径必相交。
16.
Inverson of Circle: Into a circle, if the circle pass through inversion center O, it becomes a straight line.
圆的反演：反演成一圆。但当圆通过反演中心时变成一直线。
17.
The center of pressure is about 1-11/2 diameter in front of the center of gravity.
压力中心大约在重心之前1-11／2 直径。
18.
The centre of this wooden disc was hollowed out to a diameter equal to the exterior diameter of the Columbiad.
这木盘中间留着一个直径相当于哥伦比亚炮外径的圆洞。