As the distance LW can vary during a forging sequence, LW must be monitored manually or automatically and the value of LW continuously fed into stores 43 and 48.

• 因为间隔LW在锻造过程中会不断变化，所以必须对LW进行手工或自动监控，将LW的数值不断反馈到存储器43和48中。