This paper introduces a principle and practice on milling special shaped spiral rod with non instantaneous pole envelope method.
介绍了异形螺杆数控铣削加工中应用无瞬心包络原理的理论与实践。
The 3d simulation of machining process for special shaped spiral rod is realized. Data ready, tool choice and final NC machining are all accomplished automatically.
该系统实现了对异形螺杆加工过程的三维仿真，完全自动实现从数据准备、刀具选取到最终数控加工的全过程。
This small curved to spiral rod-shaped bacterium is found in the surface epithelial mucus of most patients with active gastritis.
在大多数急性胃炎病人的黏膜上皮可见小弯曲螺旋状杆菌。
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