清单wnserver . py包括三个类，分别处理站点URL空间中的不同部分。
The listing wnserver.py contains three classes, each of which handles a different part of the URL space for the site.
这是位于湖边的一个体量，由三部分组成，包括三个不同的功能，起居，储藏和停车。
One volume, located parallel with the lake, is divided into three parts for three different functions - living, storage and parking.
AIDB包括三个部分：抽象数据库访问接口、不同数据库的驱动程序以及驱动管理程序。
AIDB consists of three parts: an abstract database access interface, a different database driver and driver management procedures.
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