St=standard time (标准工时) tt=take time (节拍工时) ct=cycle time (周期工时);区别在于对时间进度的要求把控不同。工位之间的移动时间依据生产线的类别不同，作业员之间的距离不.
Connecticut Lottery
Is The Ct Lottery Rigged This Statistic Will Make You Question Everything Official Web Site Annual Reports
Dalbo
