path path(ol.) =pathological; pathology. n. (pl. paths ) 1.(自然踏成的)路;路径;(马路边上的)人行道;(车子走不过的)小路;(竞走或自行车比赛的)跑道。 2.路线;路程;〔比喻〕(人生的)道路;(思想、行为、生活的)途径,方式。 3.【天文学】道,带。 approach path 【航空】进场航线。 moon's path 【天文学】白道。 path of a total eclipse 【天文学】全蚀带。 a path strewn with roses 撒满玫瑰的道路,安乐的一生。 a beaten path 踏出来的[走惯的]路;常规,普通方法。 break [blaze] a (new) path 开辟一条(新)路。 cross sb.'s path 碰见某人;挡住某人去路,阻碍某人。 set sb.on the right path 使某人走上正路。 path-breaker 开路人;闯将。 adj. -less 无路的,人迹未到的。
In this dissertation , the key technologies in the development of the cad / cam software based on acis geometric engine are studied in depth . and tool path generation methods are researched with emphasis . the requirements of the manufacturing - oriented cad / cam systems are analyzed 本文以工程应用为背景,结合国家“九五”重点科技攻关专题,深入研究了基于acis几何平台的cad cam系统开发的相关技术,并对其中的数控加工编程技术进行了重点研究。
4 . research on the tool path planning of parallel machine tool a method of fixture - free manufacturing , adaptive to parallel machine tool , has been briefly introduced . and we also did some research on the tool path planning of processing multiple surface with parallel machine tool 并联机床刀具路径规划的研究本文还对适合并联机床加工特点的“自动寻位?加工”方式进行了介绍,同时对并联机床加工复杂曲面的实时刀具路径规划进行了理论上的探讨和研究。
This dissertation presents improved methods for both testing results analysis and aspheric mirrors fabrication concerning computer controlled optical surfacing ( ccos ) technology to improve its efficiency and accuracy . a new ccos model based on " relative tool path " is proposed , and a method is developed to solve and evaluate fabricating parameters 目前ccos ( computercontrolledopticalsurfacing )技术被广泛用于离轴非球面反射镜的制造,本文针对该技术中涉及到的一些问题开展较为深入的研究,以进一步提高离轴非球面的加工效率和精度。
We put forward an algorithm for self - discrimination of island relation and an automatic intersected method of the region machining unit , which can judge the relationship among any plane obturate contour line effectively and swiftly . we also study the tool path generation technology of two - dimensional machining , basso - relievo machining , three - dimensional lifting - pen machining . meanwhile , we put forward an optimize approach of tool path , which improve the efficiency of engraving 研究了图像的刀具路径生成技术与轨迹规划问题,提出了基于射线的岛屿关系自动判断和区域加工单元的自动分割方法,有效、快速地判断了平面任意封闭轮廓线之间的关系,研究了平面任意区域填充加工、浮雕加工、三维提笔加工的刀具路径生成的技术,提出了刀具路径优化方法,提高了雕刻加工的质量和效率。