• 1. NP-hard problem: NP困难问题 | 困难问题 | NP难度问题
• 2. NP hard problem: NP难问题 | np难
• 3. NP - hard problem: NP完全问题

更多释义

• 1.Test set problem is a NP-hard problem with wide applications.
  测试集问题是一个有着广泛应用的NP难问题。
  dict.yoduao.com
• 2.But it is a NP-Hard problem to get the minimal attribute reduction.
  但求取任意问题的最小属性集是一个NP难问题。
  dict.yoduao.com
• 3.The vehicle-scheduling problem with time window is also a NP-hard problem being more complicated than VSP.
  带有时间窗的车辆优化调度问题是比VSP复杂程度更高的NP难题。
  dict.yoduao.com

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