jdo的翻译

Object ID including physical storage information, compared with traversing JDO Object in JDO environment Object, so the method can cut down the time for accessing to disk in case index filter factor is smaller.

由于对象ID包含实例的物理存储信息，相对于JDO环境对象遍历的查询方式，该方法在索引过滤因子较小的情况下，能节省磁盘的访问时间。

Org. acme. membership. domain, which holds the JDO enhanced business domain classes

它含有JDO增强的业务域类

The Google JDO implementation has a particular Key class/ type that we will use.

Google JDO实现拥有特定的Key class/type（键类/键类型），我们将会使用到它。