查询词典 alternation

Experiencing the change of life and age, alternation of generations, Debussy recorded the story of world by music. We can realize what he saw, what he heard and what he suffered from in his compositions.

历经人生际遇及时代的巨变，新旧交替的矛盾与冲突，呈现於作品内容的，就是对於所见、所闻及所感受的真实回应。

In plants and algae that undergo alternation of generations, a gametophyte is the multicellular structure, or phase, that is haploid, containing a single set of chromosomes, and has its own information on genetic expression.

在植物世代交替的生活史中，配子体是产生配子和具有单倍数染色体的植物体，并且有自己的遗传表达信息。

Diplobiontic Describing life cycles showing a typical alternation of generations with haploid and diploid somatic bodies.

异型世代：具有典型的单倍体和二倍体世代交替的生活史的现象。

Access to a large number of Chinese and foreign literatures, this text summarized the life cycle of aphids including anholocyclic type, heteroecious holocyclic type and antoecious holocyclic type, and the important biological characteristics including alternation of generations, difference of hibernation and polymorphism, it offered the theory basic of comprehensive prevention and control.

通过查阅大量的中外文献，对蚜虫生活周期的不全周期生活史、全周期同寄主生活史和全周期异寄主生活史进行了阐述，归纳出蚜虫生活周期中的世代交替、越冬方式的差异、多型现象几个主要生物学特点，为蚜虫的科学控制提供一定的参考价值。

Thus we know, withthe alternation of generations, the descendant of pollen plant does not produceboth deterioration or separation and reversed rotation of fertility.

实践证明，应用粳稻花粉植株进行育种是可行的，它能迅速稳定杂种后代和有较高的选择效率。

In plants that undergo ALTERNATION OF GENERATIONS, spores are produced by meiosis by the sporophyte generation, so are usually haploid; they germinate to produce the haploid gametophyte generation.

在具有世代交替的植物体中，由孢子体世代进行减数分裂产生孢子，因此多为单倍体。它们将发育为单倍体的配子体世代。

In organisms showing ALTERNATION OF GENERATIONS, the gametes may be produced by mitosis in the haploid generation, or by meiosis in the diploid generation and give rise directly to gametes or gamete-producing cells.

在表现出明显世代交替的生物体中，配子可能是由单倍体世代发生有丝分裂产生，亦可由二倍体世代减数分裂直接产生配子体或配子母细胞。

Macrocystis and Nereocystis and is distinguished by its heteromorphic ALTERNATION OF GENERATIONS in which a large sporophyte alternates with a microscopic gametophyte, and in which growth takes place in a special meristem region on the surface of the thallus.

在这类植物的生活史中，孢子体比配子体小。配子体是由叶状体表面特殊的分生组织区发育而来的。

A division of nonflowering plants characterized by rhizoids rather than true roots and having little or no organized vascular tissue and showing alternation of generations between gamete-bearing forms and spore-bearing forms; comprises true mosses and liverworts and hornworts.

无花植物的一个亚部，以假根而非真根为特点，有小的或没有维管组织，有结合体和孢子体的世代交替；由苔藓类组成。

Plantae in the part of the green algae, must Most red algae and brown algae, all higher plants (including mosses, ferns, naked child, and angiosperms) and all have alternation of generations life cycle.

植物界中的部分绿藻、绝大多数红藻和褐藻、全部高等植物（包括苔藓、蕨类、裸子和被子植物）的生活史均具有世代交替。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。