记录杆 meaning in English

recording arm
recording bar
recording lever
recording link
writing edge

Defining the pose parameters of the tool as the driving dimensions and the length of actuating limbs as the driven dimensions , the configuration of the simulation mechanism was varied correspondingly with the variation of the driving dimensions and the driven dimensions ( length of actuating limbs ) could be acquired and recorded
给出了并联机床机构简图和虚拟样机实体模型，通过将数控代码进行预处理，进行了并联机床的虚实映射计算，即给定刀具位置和姿态的驱动尺寸、驱动杆件长度的被驱动尺寸，在装配约束作用下驱动尺寸带动整个机构运动，记录杆件长度的被驱动尺寸，求解出杆长的值。