This tells GLPK to create a constraint for each toy type in TOY, and the equation that will rule each constraint will be what comes after the :. In this case, GLPK will create
这告诉 GLPK 为 TOY 中的每种玩具类型都创建一个约束，每个约束的等式都在 : 之后出现。
OK, and we can find this one from the constraints as we've een at the beginning either by differentiating the constraint, or by using the chain rule on the constraint.
我们可以从限制条件中找到这个，我们一开始就看到的，要么用微分限制条件，要么利用链式法则。
Variable rule, constraint rule and effective rule were discussed, and construction approaches for configuration knowledge base are proposed.
给出了变量配置规则、配置约束规则和有效性规则等。 讨论了配置知识库的构建方法。
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