Consequently, this cycle is also known as the alternation of generations. 因此,这种生命周期又称为世代交替。
The gamete-producing individual or phase in the life cycle of a plant having alternation of generations. 在一种植物的生命周期中产生配偶子的个体或阶段,从而引起一代代的更替。
The concept of an alternation of generations can be extended to the flowering plants, in which the embryo sac and pollen represent the much reduced famale and male gametophyte generations respectively. 这个概念也可以运用在有花植物上,由胚囊和花粉各自表达雌雄配子体世代。
Gene drift in genetic resources during the alternation of generations is simulated by imitating the process of random sampling with the random number produced by computer. 用计算机产生的随机数来模仿随机抽样过程,对种质资源世代更替中基因漂变进行了模拟。
Evolution inversion operation and simulated annealing technique for alternation of generations are introduced to enhance its ability of searching optimal solutions. 在执行遗传操作时与爬山法相结合,在群体更新时引进模拟退火更新机制,大大加强其寻优能力。
Conclusion Alternation of generations of family dogs by health education is the most effective method in countermeasure for control of thelaziasis. 结论对结膜吸吮线虫病流行区,在健康教育基础上,果断实行换代大措施,是阻断本病传播的最有效方法。
In the perennial coralloid root nodules, their alternation of generations is infectious mycelium, reproduceable mycelium, vegetative mycelium, spring sporangium and spring spore, and vesicle in spring and summer; 在多年生珊瑚状的根瘤中,它们的世代交替是:春夏季以侵染菌丝、繁殖菌丝、营养菌丝、春孢子囊及春孢子、泡囊为主;
Studies on the relationship between alternation of generations of dogs and transmission of thelaziasis 换代犬与阻断结膜吸吮线虫病流行关系的研究