系统的核心设计是预先完成的，但是具体实现还是在开发过程中慢慢成型。
The major design of the system was known up front, but the implementation was still a work-in-progress during the construction of the software.
提出了在产品设计过程中如何提高抗短路强度的具体措施。
Puts forward the measures to improve anti-short-circuit strength on the process of product design.
这就是为什么人物角色是设计行为过程中的一个关键工具，它们代表了具有特定目的或者目标的具体的那些人。
This is why personas are such an important tool in the process of designing behavior; they represent specific people with specific purposes or goals.
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