对传统的实体信息获取方法作了改进，提出了面向对象的子实体信息获取方法，满足了工程应用的需要。
Traditional ways for information acquisition is improved, instead the sub-entity information acquisition oriented to object is proposed, and it can meet the requirement of the project.
对传统的实体信息获取方法作了改进，提出了面向对象的子实体信息获取方法，满足了工程应用的需要。
Traditional ways for information acquisition is improved, instead the sub-entity information acquisition oriented to object is proposed, and it can meet the requirement of the project.
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