In this paper, we address the existence of multiple machines for some machine types and present a model for the cell formation problem.

文中强调多台同种机床的存在，并给出了一个单元构成网络问题的模型。

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Taking formation problem of multiple underwater vehicles as an example, the application model of DRL in multi-robot systems is illustrated.

以多水下机器人的编队任务为例探讨了分布式强化学习在多机器人系统中的应用模式。

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The formation problem in multi-robots systems is defined as the coordination of a group of robots to maintain a formation with a desired shape and reach a particular destination without collisions.

编队控制是指多个机器人在到达目的地的过程中，保持某种队形同时又要适应环境约束的控制技术。

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But there is still the problem of managing the formation and dispersal of platoons as cars join and leave, notes Dr Hedrick.

ECONOMIST: MONITOR

In early February, the State Department announced the formation of a task force to deal with the problem of Iraqi refugees.

NEWYORKER: Betrayed

He wants to see an immediate reduction in pesticide use until the effects are better understood, and is pressing for the formation of a European Union environment unit to study the problem.

BBC: By BBC News Online's Environment Correspondent Alex Kirby