然而传统的基于CPU平台的计算方法成本过高，使得精细化模型的应用受限。
However, the application of the refined models has been limited because of the high cost of computation if it is implemented on traditional CPU platform.
从实际或潜在的客户那里来的输入在细化业务模型的此阶段是非常重要的。
The input from actual or potential Customers will be invaluable in this phase to refine the business model.
然而，用文本约束细化类模型是耗费时间并且易于出错的任务。
However, refining class models with textual constraints is a time-consuming and error-prone task.
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