1) ACO-hard and ACO-easy problems
ACO-难易问题
2) GA-hard and GA-easy problem
GA-难和GA-易问题
3) Difficult problem
疑难问题
1.
Study on Difficult Problems in Government Information Publicity Litigation——Empirical Study on Administrative Litigations in Zhejiang Court
政府信息公开行政诉讼案件疑难问题研究——以浙江法院审理的行政案件为实证样本
2.
When the medium is of v(z)= v 0(1+βz) , the computational results disagree with argument that 3 D migration offset can be split into two components pointing respectively in x direction and vertical direction, and they are just the 2 D migration offset in these two directions, therefore producing an difficult problem for mapping with 2 D migration section.
利用单斜构造摸型对T0 空校作图方法的正偏移和反偏移进行计算 ,结果表明“三维空间偏移量可以分解为测线x方向上和垂直于x方向的 2个分量 ,它们恰好是沿着这 2个方向上的二维偏移量”的结论对v(z) =v0 (1+βz)时的连续介质而言是不成立的 ,从而使有关的叠偏剖面作图方法在原理上出现了疑难问题。
4) difficulties
[英]['difikəlti] [美]['dɪfə,kʌltɪ]
难点问题
1.
Objective To explore the difficulties and countermeasures in the morning shifting report in English.
目的探讨护士英语交班中存在的难点问题及应对措施。
5) NP-hard problem
NP-难问题
6) Difficult problem
难点问题
1.
Several difficult problems of application of Shape Memory Alloy in civil engineering structural vibration control
土木结构应用SMA进行振动控制存在的难点问题
补充资料：难易
1.艰难与容易。 2.偏指艰难。 3.偏指容易。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条