Thirdly, we study the problem that quay cranes perform loading and unloading operations simultaneously in the same ship-bay, namely quay crane dual cycling scheduling problem.
然后，研究装卸桥在同一贝位内同时进行装船与卸船作业的调度问题，即同贝同步装卸调度问题。
Thirdly, we study the problem that quay cranes perform loading and unloading operations simultaneously in the same ship-bay, namely quay crane dual cycling scheduling problem.
然后，研究装卸桥在同一贝位内同时进行装船与卸船作业的调度问题，即同贝同步装卸调度问题。
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