The paper discusses a nonregular cost function and its optimum criterion, presenting an algorithm of constructing and optimal alphabetic binary tree under this criterion.
本文讨论一种非正则的评价函数和它的最优化的一种准则，给出在这种准则下构造按字典次序的最优二元树的一种算法。
Optimum recipe of special multi element foliage fertilizer for jujube tree is tested and studied by adopting orthogonal trial design.
采用正交试验设计对多元枣树专用叶面肥最佳配方进行了试验研究。
The great bearing interval was regarded as optimum time, and optimum method for plus tree selection was put forward by the analytical results.
提出了以定期结实年数和定期结实枝平均生长量为标准的优树选择方法。
By fuzzy set theory and the method of hierarchy with sequence tree, anew mode is proposed in which environment affects optimum seeking evaluation.
本文应用模糊集合论理论和构造层次有序树方法，提出了环境影响优选评价的新模式。
The binary tree forest data structure is used to describe the lever load system of structure test. On the basis of this description, a optimum method of load system design is studied.
采用二叉树森林数据结构来描述结构试验的杠杆加载系统，在此基础之上对加载系统的优化设计方法进行了研究。
With the temperature dropping below the optimum, as its period prolonged, the normal metabolism in the rubber tree was changed.
随着温度的下降和持续时间的延长，椽胶树的正常代谢发生变化。
The multicast tree switching method and the device realize optimum forwarding path for multicast tree switching.
应用本发明提供的方法和装置使组播树切换时转发路径最优。
By assuming that tree growth under optimum conditions is proportional to its leaf biomass and is inversely proportional to its size, the optimum growth model has been derived for the 8 species.
设在最佳环境条件下树木的生长与叶量成正比，与本身大小成反比，推导出树木最优生长模型。
In general, the optimum decision tree can be found by ID3 algorithm.
一般情况下，ID 3算法可以找出最优决策树。
Therefore it provided the scientific basis for the optimum choice of the tree species in various soil in afforestation.
从而为不同土壤条件下造林树种的优先选择提供了科学依据。
AHP method with progressive rank structure was applied in the paper to study on the optimum structures of forest type and tree species in Qiuqiangou forest Farm, Shanxi Province.
选用层次结构的层次分析法作为数学工具，对山西省秋千沟林场的林种和树种结构进行了研究。
AHP method with progressive rank structure was applied in the paper to study on the optimum structures of forest type and tree species in Qiuqiangou forest Farm, Shanxi Province.
选用层次结构的层次分析法作为数学工具，对山西省秋千沟林场的林种和树种结构进行了研究。
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