查询词典 species

The basic logogram usuallyrepresents the species of the animal, whereas two short horizontallines denotes the male of the species, and an extra vertical linedenotes the female.

在一个表示一种动物的符号上加上两条短的横线表示雄性，加上一条竖线则表示雌性。

Analysis of the obtained genome amplification showed that DNA after PCR presented obvious polymorphism, and the results were the same using the same primer to amplify the larva and imago of the same species. It indicates that RAPD technique can be applied to the identification of dry samples and dipped larva sample of longicorn beetles as well as the research of phylogeny. These three methods for extracting genome DNA from different species of longicorn beetles at different preserved time are feasible.

对所获得的基因组扩增分析表明，经过PCR之后的DNA能呈现明显的多态性，同种天牛用同一引物扩增幼虫和成虫所获得的结果相同，可以认为，RAPD技术可以应用于天牛成虫干标本及幼虫浸渍标本的鉴定及系统发育研究中，也证明了这3种方法用于提取不同保存时间、不同种天牛基因组的DNA是切实可行的。

Based on intensive observation and measurement to the characteristics of tissue anatomical structure of some tree species, the relation of anatomical structure of tree species and their resistance to longicorn beetles was studied systematically with stepwise regression analysis.

作者中文名：刘晶岚；温俊宝；马履一；谢琛；吴彤；田海燕；罗彦文摘要：该文通过对9种树种组织解剖结构特征的观测，运用逐步回归方法，分析了树种解剖特征的差异与天牛危害之间的关系。

Eight species were trapped in Longworth and Sherman traps and ear tags while specific data were recorded. These species included 52 common vole Microtus arvalis, 230 house mouse Mus musculus, 103 white toothed shrews Crocidura russula, 24 House rat Rattus rattus, 96 Norway rats Rattus norvegicus, 15 wood mouse Apodemus sylvaticus, 5 Field vole Microtus agrestis, and 1 Pygmy white toothed shrew Suncus etruscus.

结果表明，废弃地小型兽类群落由以下八个物种组成：共捕鼠类529只，分别是普通田鼠52只，小家鼠230只，中麝鼠句103只，黑家鼠24只，褐家鼠96只，小林姬鼠15只，田鼠5只和Pygmy中麝鼠句1只，根据活动区大小的分析发现各物种在废弃地具有各自的活动领域和微栖息地。

The occurrences, relative abundance, relative density, most common and longest SSRs in the three species were analyzed and compared with each other. The results revealed that the SSRs number in B. japonicum, M. loti and S. meliloti genomes were 1410, 859 and 638, respectively. In the three genomes, tetra-, penta-and hexa-nucleotide repeats were more abundant, indicating higher mutation rates in these species.

大豆慢生根瘤菌、百脉根根瘤菌和苜蓿中华根瘤菌基因组中的SSRs分别为1410个、859个和638个，3种根瘤菌基因组中长重复的四、五、六核苷酸基序更为丰富，变异性更高。

The Bengal Florican is a shy, charismatic species - much loved for its elaborate courtship display.Biologists are trying to learn more about this enigmatic bird.Bengal Floricans Researcher, Lotty Packman:"...the way they jump up and they call and fly down, they're just very unique, very interesting species to be studying."

孟加拉鸨是害羞但又十分有吸引力的种类，它们夸张的求偶表现令人喜爱，生物家希望能更了解这种如谜一般的鸟，它们跳的方式叫的声音及飞下来的样子，它们就是非常独特，研究起来是非常有趣的种类。

The actual definition of macroevolution accepted by scientists is "any change at the species level or above"(phyla, group, etc.) and microevolution is "any change below the level of species."

科学家承认的宏进化的实际定义是，"在物种水平或高于物种水平的变化，而微进化是低于物种水平的任何变化"。

The table of contents include 6 parts, background to the study of evolution, patterns and history, evolutionary processes in populations and species, character evolution, macroevolution: evolution above the species Level, human evolution.

内容分为6部分，进化研究的背景，模式和历史，种群和物种的进化过程，进化特征，宏观进化：物种水平上的进化，人类进化。

They may accept that evolutionary change is possible within species ("microevolution"), but deny that one species can evolve into another ("macroevolution").

他们可能会承认进化变化可能在物种内发生，但他们否认一个物种可以演变成另一个物种。

About 80 species: tropics of America, Asia, and Madagascar; four species in China.

大约80种：美国，亚洲和马达加斯加的热带；在中国的4 种。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。