提出了半环的次极小理想的概念，讨论了半环的次极小理想的基本性质，并得到了一些相关的结论。
Submaximal ideal and subminimal ideal of semiring; 2. In this paper, the concept of subminimal ideal of semiring is introduced.
本文引入了概念强稠密理想，得到了极小强稠密理想存在的等价条件。
This article introduces the concept of a strongly dense ideal in the theory of parallel decomposable lattices.
给出满足主右理想极小条件诣零环的两个充要条件，此类环是扩张闭的。
This peper gives two necessary and sufficient conditions for a ring to be a nil MHR-ring. It is obtained that any nil MHR-ring is extension closed.
然而模拟退火算法依然存在着其自身的不足，即避免陷入局部极小值以及解空间的搜索能力和范围这两项指标不是很理想。
But simulated annealing algorithm also has weak point, that it is not very satisfactory of avoiding falling into local minimum and search capability and area of solution space.
然而模拟退火算法依然存在着其自身的不足，即避免陷入局部极小值以及解空间的搜索能力和范围这两项指标不是很理想。
But simulated annealing algorithm also has weak point, that it is not very satisfactory of avoiding falling into local minimum and search capability and area of solution space.
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