A seat is mounted on a platform which is surrounded by an endless circular projection-tunnel.
一个座椅被包装在投影幕形成的环里面组成了一个旋转平台。
The experimental results show that the technology of nut circular projection welding is superior to that of arc welding.
试验结果表明，螺母环形凸焊工艺优于电弧焊工艺。
Between each pair of staggered horizontal circular steel plains, the curving, conical projection screens are installed.
在每两个摇摆的水平圆形钢平面之间，安装着曲面的圆锥形投影屏幕。
An analytical method allowing exact reconstruction from cone-beam projection data which are detected from a single circular orbit is discussed.
本文介绍了一种可以对来自于单一圆轨道的锥束投影数据进行精确重建的分析方法。
Projection data is obtained from an integration of the reflectivity coefficients of the objects along the circular arc of the wavefront with a radar beamwidth.
反射数据实际上是反射特征系数沿着具有一定雷达波束宽度的波阵面圆弧的积分。
Besides, the projecting formula of the circular arc is also listed in the paper, which can offer the computer a calculating method to draw stereoscopic projection.
本文还给出了圆弧的投影方程，为计算机绘制极赤图提供了计算方法。
Besides, the projecting formula of the circular arc is also listed in the paper, which can offer the computer a calculating method to draw stereoscopic projection.
本文还给出了圆弧的投影方程，为计算机绘制极赤图提供了计算方法。
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