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。
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