根据“团价矩阵”和收缩规则，本方法可在不改变原字符图象结构的同时缩小字符图象。

According to "group-valence" and the rule of contracting, the size of character-picture can be contracted without changing their structure.

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如果放宽类型转换规则，则编译器将在“许可类型语义”下操作，该语义允许在不使用转换关键字的情况下进行收缩转换。

If you relax the type-conversion rule, the compiler operates under permissive type semantics, which allows you to make narrowing conversions without conversion keywords.

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要实现利斯科夫原则，您需要坚持简单规则：域的一种方法不能收缩在子类中。

To fulfill the Liskov principle, you need to adhere to a simple rule: the domain of a method can't be shrunk in a subclass.

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