This article present a new strategy of frank milling on ruled surface.
文中阐述了一种侧铣规则曲面的加工策略。
Curvatures of theoretical profile surface, which is a ruled surface, are easy to get.
由于理论廓面是直纹面，其廓面曲率容易求得。
For centuries the surface has been ruled by robots, but deep underground life continues.
几个世纪以来一直统治表面由机器人，而是深入地下生活仍在继续。
For centuries the surface has been ruled by robots, but deep underground life continues.
几个世纪以来一直统治表面由机器人，而是深入地下生活仍在继续。
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