As with the ER model, we used EMF to implement bi-directional transformations between EAML and SA Process Models.

与ER模型一致，我们使用EMF实现EAML与SA过程模型之间的双向转换。

youdao

While the definitions of the constructs in the ER model are simple, the model does not address the fundamental issue of how to identify them.

ER模型的定义是很简单的，他并没有解决根本问题，如何确定基本问题呢？

youdao

Although it is easy to define the basic constructs of the ER model, it is not an easy task to distinguish their roles in building the data model. What makes an object an entity or attribute?

虽然建造基本的ER模型是很容易的，但是区别他们在建设数据库时所处的地位并不容易，什么决定了一个对象是实体还是属性呢？

youdao

To the dismay of his high-minded rivals, Mr Desmond has invented a new low-cost business model for the, er, bottom end of the tabloid market.

ECONOMIST: The newspaper industry

It has the same 8-megapixel camera, while the smaller, er, Mega, only comes as an 8GB model.

ENGADGET

One People.com commenter even suggested that 2013 was "the year of the 'young-er cougar, ' " noting that race car driver and model Danica Patrick, 30, is dating fellow driver Ricky Stenhouse Jr.

CNN: Cougars in training: Young women dating even younger men