The point of a pull system is to use a kanban board to limit work-in-progress by pulling from the previous phase of your value stream when necessary.
拉动系统的要点是在需要的时候通过拉动前期的价值流，利用看板来限制在制品的数量。
Yet many would acknowledge that the theory has great value in illuminating such aspects of our moral experience as reaching decisions when we feel the pull of conflicting obligations.
也有人可能会承认这个理论在这些方面是有巨大的启示作用的，即在当我们感到义务分歧的时候作为抉择达成的道德经验这方面。
The paper studies the integration between digital service provider and network service provider on the value chain in the environment of 3G, analyzes separately the push SC and the pull SC.
在3G环境下，针对价值链上的数字服务商与网络服务提供商之间的整合进行研究，分别对推式供应链和拉式供应链进行了分析。
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