在我们的四则运算表达式里面我们可以利用继承实行从一元到二元操作符的表示,但它实质上会干扰测试。
In our arithmetic expressions we could have used inheritance to get from a unary to a binary operator node, but that would substantially violate the test.
换句话说,就是通过引入相应的谓词,将二元关系的性质用逻辑公式来表示。
In other words properties of binary relation are expressed by logic formulae through introduce corresponding predicate.
二元数组表示的图象使用的距离概念运用于线性四元树表示。
The concept of distance used in binary array representations of images is applied to a linear quadtree representation.
Just as a 2-list, or a list of 2 elements.
来表示它们,就想一个二元数组。
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