本文讨论了在平缓海底上在波流共同作用下规则波变形的二元问题。
The duality of wave transformation under the coaction of both wave and currents on a gentle sloping beach was discussed in this paper.
这个问题的核心是将决策变量声明成二元变量。
The heart of this problem is the declaration of the decision variables as binary variables.
集合覆盖问题涉及的是二元决策变量；也就是说，它们的值只能是0或1、yes或no。
The set covering problem teaches binary decision variables; that is, they can only be 0 or 1, yes or no.
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