由于视点之间的相对独立性，多视点的集成是需求工程中一项重要而又困难的研究课题。
Because of the independence of viewpoints, viewpoints' integration is an important and difficult problem in requirements engineering.
由于视点之间的相对独立性，多视点的集成是需求工程中一项重要而又困难的研究课题。
Because of the independence of viewpoints, viewpoints' integration is an important and difficult problem in requirements engineering.
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