通过螺旋采集数据获取足够的信息，运用特殊算法，重建管的三维图形，显示在模拟监视器上。
Through the spiral gathering data gain enough information, the utilization special algorithm, reconstructs the tube the three dimensional graph, demonstrated in simulates on the monitoring device.
在图形工作站上，仅需输入订货数据，即可实现可转位螺旋立铣刀的三维自动设计。
By inputting ordering data, the solid modeling design of helical end mills on graphic workstation can be realized automatically.
三角图形似轮船的螺旋桨，象征著上海是一座不断前进的城市；
The triangular figure is like screw of the steamer, signify shanghai is a city that is advancing constantly ;
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