Because a kind of basic mismatch exists between object model and relation model, it leads to that object systematic developer spend a large amount of time taking object persistent.

由于对象模型和关系模型之间存在一种基本的阻抗不匹配，导致使用关系数据库的面向对象系统开发人员通常要花费大量的时间来将对象持久化。

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Because a kind of basic mismatch exists between object model and relation model, it leads to that object systematic developer spend a large amount of time taking object persistent.

由于对象模型和关系模型之间存在一种基本的阻抗不匹配，导致使用关系数据库的面向对象系统开发人员通常要花费大量的时间来将对象持久化。

youdao