虽然这两个变种对于土壤湿度有截然不同的偏好,但混合种群的情况并不少见。
Although the two morphs have distinct preferences for soil moisture, mixed populations are not uncommon.
然而事实却是,在混合种族的社会中,几乎人人都以一滴血降级观念瞄准了相同的少数种群,这是一项很说明问题的指标,表明该现象是可被学习的——而且学习作用还如此强大。
The fact that nearly everyone in a mixed-race society, however, targets the same minority groups for one-drop demotion is a telling indicator that the phenomenon is learned - and powerfully so.
混合遗传算法在产生初始种群时引入启发式方法,采用自适应遗传参数和交替使用两种交叉算子;
In the HGA , heuristic algorithm is used to produced initial population , self-adaptive parameter are used in copy operator, crossover operator and mutation operator .
提出并研究了一类具有脉冲干扰和混合功能反应的三种群捕食链模型。
A food chain model of three species with impulsive perturbations and mixed functional response is proposed and studied.
岩石响尾蛇典型地在全部的着色中是灰色的,虽然特定的种群可能进入和背颜色的他们的周围岩石的生境之内混合粉红的,褐色和黄褐色的。
Rock Rattlesnakes are typically grey in overall coloration, although certain populations may blend into their surrounding rocky habitat with dorsal colors of pink, brown and tan.
这些地区拥有最大的混合物种群体,其中一个例子就是马达加斯加。
These are the areas which have the greatest mixture of species, so one example is Madagascar.
提出并研究了一类具有脉冲干扰和混合功能反应的三种群捕食链模型。
In this paper, a three species food chain model with impulsive perturbations e.
在该混合算法中,采用NEH启发式算法进行种群初始化,以提高初始解质量。
The initial population was generated by the NEH constructive heuristic to enhance the quality of the initial solutions.
利用重合度的连续性定理,研究了一类多种群脉冲混合系统正周期解的存在性,得到了该系统存在正周期解的充分判据。
The study on the mixed system of meat - ISP showed a new type of protein was formed at about 60C with the interaction between the two proteins.
利用重合度的连续性定理,研究了一类多种群脉冲混合系统正周期解的存在性,得到了该系统存在正周期解的充分判据。
The study on the mixed system of meat - ISP showed a new type of protein was formed at about 60C with the interaction between the two proteins.
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