1.
Slotted large raised cheese head screws
GB/T947-1988开槽球面大圆柱头螺钉
2.
The Algorithm and the Geometric Character of the Optimum Point on the Sphere;
球面大圆上最优点的算法与几何特征
3.
A similar great circle drawn on the surface of a celestial body at right angles to the axis of rotation.
天球赤道在天体表面与自转轴成直角的大圆
4.
an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator.
穿过地球南北极且与赤道垂直的假想的地球表面的大圆。
5.
Study on Wind Effects on Long-Span Ellipsoidal Surface Roof and Conical Surface Gladding;
大跨椭球面层盖和圆锥面幕墙组合结构的风效应研究
6.
A geometric surface, all of whose plane sections are either ellipses or circles.
椭球，椭面其所有切面都是椭圆或圆一种几何面
7.
a figure on the surface of of sphere bounded by arcs of 3 or more great circles.
球体的表面是由三个或更多的大圆的一些弧线所组成的形状。
8.
a circle dividing a sphere or other surface into two usually equal and symmetrical parts.
把一个球体或其他的表面分成两个大抵相等和均匀的部分的圆圈。
9.
an imaginary line around the Earth forming the great circle that is equidistant from the north and south poles.
想象中环绕地球表面距南北两极距离相等的大圆。
10.
a sphere on which a map (especially of the earth) is represented.
上面画着地图（尤其是地球的）的圆球。
11.
A hockey stick has two sides. The left side is flat, and the right side is rounded.
曲棍球球棍有两侧，左侧是平面，右侧为圆凸面。
12.
a circular line on the surface of a sphere formed by intersecting it with a plane passing through the center.
一个通过球心的平面与球面相交所形成的圆。
13.
The earth on which we live is a big ball .
我们居住的地球是一个大圆球。
14.
the great circle on the celestial sphere midway between the celestial poles.
环绕球形天体与地球类似的大圆。
15.
the great circle on the celestial sphere whose plane passes through the sensible horizon and the center of the Earth.
天球上的一个大圆，有一个通过地球的中心并与观察者的视野平行的平面。
16.
Slotted capstan screws
GB/T832-1988开槽带孔球面圆柱头螺钉
17.
Slotted raised cheese head with shoulder
GB/T946-1988开槽球面圆柱头轴位螺钉
18.
Square set screws with long dog point and rounded end
GB/T83-1988方头长圆柱球面端紧定螺钉