Then the direction of fracture zone can be determined by making both X, Y-component detection in data acquisition and coordinate revolution in data processing.
如果野外作了X、Y分量观测，室内又作了坐标旋转处理，那么，就可以进一步确定裂缝带的方向。
The animation programs of the making revolution surface is compiled, and a general coordinate formula of geometric transformation is deduced about an arbitrary revolution curve around a rotation axis.
给出旋转曲面生成过程的动画程序，并导出了任一曲线绕任意轴旋转的坐标间几何变换公式。
Reformed light MQ6025A universal tool grinder can realize 2-coordinate linkage machining of special type surface of revolution cutting tool.
通过简单改造的MQ 6025a轻型万能工具磨床，可实现两坐标联动加工特种回转面刀具。
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