Here are the two models that I've seen work successfully.

下面两种模型是我见过的成功范例。

youdao

In fact, most of the core concepts map directly between the two models.

事实上，二者的大多数概念都能直接映射。

youdao

A mechanism is therefore needed to keep the two models in sync with each other.

因此需要某种机制来保持两个模型彼此同步。

youdao

The movable display, which is 15 meters long and five meters high, has two nearly life-sized models of fighter aircraft, covered with flowers, and flower-decked insignia.

VOA: standard.2009.12.30

Now the difference between the two models, the health model and the disease model is more than just semantic.

两种模型，健康模型和疾病模型的差异,不仅仅是语义上的。

哈佛公开课 - 幸福课课程节选

So there are two other models, then, models different from the immigration model, two other models for understanding the formation of Israel, that build on this archaeological evidence.

那么还有两个其他的模型，与移民模型不同的两个模型，这两个模型也是为了说明以色列的形成，它们是依据考古学证据。

耶鲁公开课 - 旧约导论课程节选

If you use evenly spaced values instead, the two models' outcomes will cluster differently.

ECONOMIST: Statistics and climatology

Given the lack of really important changes between the two models, going with the 4S was a no-brainer.

FORBES: Forget The iPhone 5: Now Is The Perfect Time To Buy An iPhone 4S

The two models for master-planned communities both date back to the 1960s: Irvine, in southern California, and Sun City, outside Phoenix.

ECONOMIST: The growth of private communities