precise positioning短语¹⁰⁶¹⁰⁰⁺⁵ 基本例句 精密定位 To achieve the precise positioning of the automatic mica slot undercutter of the motor commutator, this paper presents a new detecting and positioning system based on array CCD. 针对电机换向器云母槽自动下刻机,本文提出了一种基于面阵 CCD传感器的新型检测定位系统。 cnki