Db4o compromises by constraining the number of objects retrieved, using what it calls activation depth, which indicates the number of levels down the object graph to be retrieved.

db4o对此采用了折衷的办法，限制所检索的对象数量，使用称为激活深度(activation depth)的方法，它指明在对象图中进行检索的最低层。

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Db4o compromises by constraining the number of objects retrieved, using what it calls activation depth, which indicates the number of levels down the object graph to be retrieved.

db4o对此采用了折衷的办法，限制所检索的对象数量，使用称为激活深度(activation depth)的方法，它指明在对象图中进行检索的最低层。

youdao