查询词典 optimum

However, for hill-climbing strategies to be guaranteed to find the global optimum the optimality landscape must be unimodal. Moreover, research has demonstrated that multiple maxima exist under the maximum likelihood principle. Therefore, hill climbing based evolutionary tree reconstruction methods often return local optima.

但是由于进化树的似然函数通常含有多个局部极优解，而爬山算法没有逃离局部极优的能力，因此基于爬山算法的进化树构建算法很容易陷入局部极优。

In this paper, using qualitative analysis and quantitative analysis method, according to passenger O D flows and taking convenience of passenger travel for the objective, we give mathematics model of maximum matching of weighted bigarph to describe passenger train plan , and acquire an optimum solution of the problem by computer.

采用定量和定性分析相结合的办法，根据路网上旅客 O- D流量，以方便旅客旅行为目标，将直通旅客列车开行方案的确定，归结为二分图的最大权匹配问题，通过计算得到一个优化的初始方案。

Theoretically, this essay introduces another method for optimum control, named the maximum value principle.

本文从理论上阐述了解决最优控制问题的另外一种更先进的方法－最大值原理法。

By means of orthogonal test, the optimum technological condition of the precipitation method is found.

对酒精沉淀法的影响因素进行了单因素实验并进行了正交分析，找到了最佳工艺条件。

The optimum conditions for the extraction of the dry medlars were: Solid and water ration was 1:15, extracting time was 4 hours, extracting temperature was 70℃.

干枸杞理想的浸出工艺条件为枸杞与水的比率1∶15，浸出时间4h，浸出温度70℃。

Evaluating these comments in light of your specific applications may prove beneficial in providing optimum life and performance from melter thermocouples.

评估这些注释，可根据您的详细应用情况有效证明熔炉热电偶的最佳寿命及性能

Under the action of excellent memory cell, the search of algorithm to global optimum is rapid and effective.

该算法的核心在于保持种群的多样性和执行强化学习及弱小保护策略，算法不仅保持了优良抗体在进化中的主导地位，而且充分发掘强成长性抗体的寻优潜力，在优良记忆库的作用下，算法对全局最优的搜索快速且有效。

In a vessel with the upper stem diameter of 21.5 cm, base diameter of 16 cm and height of 17.5 cm, the optimum distance is 6 cm between pot mendicancy and vessel base.

在规格为上部直径21.5cm、底部直径16cm、高度17.5cm的栽培容器中，盆托与容器底部的最适宜距离为6cm。

When mercuric chloride was used to sterilize, the optimum sterilization time for stem tips, stem segments and tender leaves were 9, 12 and 7 min respectively.

用升汞消毒，茎尖、茎段和幼嫩叶片的最佳消毒时间分别为9、12和7min。

The optimum design method of the structure dimensions and the simulation model for the polished rod motion and dynamic behaviors are presented.

建立了该抽油机机构尺寸的优化设计方法以及悬点运动规律与动力性能仿真模型。

Dixie itself is a nickname for the American South.

Dixie 本身是美国南部的别称。

I think John Terry epitomises that and a big reaction is what we will be looking for.

而我认为特里就是这样一个典型，他正是我们期望看到的那个领秀。