1)  To be difficult to solve
难解
2)  answer difficult problem
疑难解答
3)  hardness
难解性
4)  NP-hard
NP-难解
1.
The black and white salesman problem(BWTSP) is a new NP-hard problem,which can be divided into the undirected BWTSP and the directed BWTSP according to the symmetry of edges in graph.
黑白旅行商问题(BWTSP)是近年来出现的新NP-难解问题,根据图中边是否对称可以分为无向BWTSP和有向BWTSP两种。
2.
QAP belong to the NP-Hard problems, which can t be solved in polynomial time.
QAP问题通常在多项式时间内无法求解,属于NP-难解问题。
5)  NP-hardness
NP-难解性
6)  context-specific words
难解词语
参考词条
补充资料:难解难入
【难解难入】
 (术语)解知难,悟入难也。法华经方便品曰:“诸佛智慧甚深无量,其智慧门难解难入。”
说明:补充资料仅用于学习参考,请勿用于其它任何用途。