端口通过provides和requires关键字进行定义，紧接着是端口的名称和下标，一个冒号以及与端口相关联的接口。

Ports are defined with the provides and requires keywords, followed by the port name and cardinality, a colon, and the port's associated interface.

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大多数情况下，这种情况不会发生，哈希函数需要把较大的关键字值范围压缩成较小的数组下标的范围。

In most cases neither of these situations exist, and the hash function will need to compress a larger range of keys into a smaller range of index Numbers.

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“一会儿见。”赫敏紧张地说，摇摇摆摆地走下标着“女”字的台阶。

"See you in a moment, then," said Hermione nervously, and she tottered off down the steps to ladies.

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