基准光线 meaning in English

datum ray

Firstly , by improving the existing light - cylinder model based highlight - line method for surface interrogation , a new method , named light - strip model based highlight - line method , is proposed . it overcame the disadvantages of the existing one
给出了改进的曲面品质检查高亮线方法,用光片模型取代光柱模型,解决了现有高亮线方法存在的检查结果与基准光线相关的问题。
( 3 ) the thesis proposes an improved algorithm for fairing of bi - cubic b - spline surface which detects the location of non - fairing automatically and adjusts the relative control points . in addition , a new highlight - line method used for surface interrogation is presented
另外,对曲面光顺性检查的高光线方法进行了改进,用光片模型取代光柱模型,解决了现有高光线方法存在的检查结果与基准光线相关的问题。