同时，为了提供所请求的服务，需要执行相当复杂的数据处理操作。

At the same time, rather complex data-processing operations need to be performed in order to provide the requested service.

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数据被组织建立起来帮助存储，恢复，修正和删除数据并与不同的数据处理操作协力。

Data are structured to facilitate the storage, retrieval, modification, and deletion of data in conjunction with various data-processing operations.

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数据处理程序负责将操作的输入和输出类型转换为有线使用的格式，反之亦然。

A Data Handler is responsible for transforming the input and output types of an operation to the format used on the wire and visa versa.

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In particular functions that operate on the data, perhaps on other data as well. The key idea here is to bind together the data and the functions that operate on that data as a single thing.

特别是处理数据的函数，也可能处理其他数据,这里的关键思想就是,将函数和操作数据的函数。

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