In the past this process of transition has often proven difficult.

在过去，这种转变过程常证明是艰难的。

《柯林斯英汉双解大词典》

This type of process can be well represented in state transition models (as, for example, available in UML).

这种类型的流程可以用状态转换模型(例如uml中可用的)很好地进行表示。

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In this perspective, we can identify 4 levels of detail, which perfectly fits with a smooth transition from analysis model to executable process model.

从这个角度看，我们可以定出4个层次的细节，它们非常适合平滑地将分析模型转换到可执行过程模型。

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"Recently, China has taken a keener interest in the security situation and the transition process, and we are more than happy that this is increasing, " Mosazai says.

NPR: Eyeing Rich Bounty, China In Line For Afghan Role

And we trust that during this remarkable time of transition in the region that Jordan will be at the forefront in being able to move a process forward that creates greater opportunity and ensures that Jordan is a model of a prosperous, modern, and successful Arab state under your leadership.

WHITEHOUSE: President Obama Meets with King Abdullah II of Jordan