Moving towards higher abstraction levels and languages, that mapping becomes one-to-many; the number of machine instructions generated from a design level construct rapidly increases.
移动到更高的抽象层次和语言上时，该映射成为一对多，由设计层构造所生成的机器指令的数量快速的增加。
2
The tedium of JDBC development led to the creation of the object relational mapping (ORM) framework, which provides a data access abstraction layer.
冗长乏味的JDBC开发导致对象关系映射(ORM)框架的诞生，该框架提供一个数据访问抽象层。
3
When an artifact seems to appear at different levels of the architecture, the highest level of abstraction is used for the mapping.