Basic concepts and definition of suspended tree and extended contour are given, an algorithm to extract it is presented using techniques of dynamic local coordinate system and adaptive bounding box.
文中提出了悬树和扩展轮廓的概念，通过对扩展轮廓的分析和定义，使用动态坐标系和动态包围盒技术，设计了一个扩展轮廓的求取算法。
Warp beam, press roller, measuring roller are braked instantly and synchronously. The press roller system is equipped with damping pressing and instant bounding devices, avoiding wearing yarn.
经轴、压辊、测速辊三辊同步高效制动，压辊设有阻尼加压和瞬间回弹装置，以避免对纱线的磨损。
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