We study two-machine flowshops problem with setup and removal time separated, where setup step and removal step of the same job can be overlaped on two machine, but the processing step can not be so.

• 摘要对有分离调整和移走时间的两机器流水作业问题，同一工件的调整和移走在不同机器上是可以重叠的，但加工时间不能重叠。