查询词典 reptiles

This paper gives a cluster analysis on geographical distribution of reptiles in Guangdong Province.

对广东省83种爬行动物的地理分布进行了聚类研究。

The highly vascular fetal membrane that consists of the fused chorion and allantois, found adjacent to the eggshell in reptiles and birds and constituting the placenta in most mammals.

绒毛膜尿囊由融合的绒毛膜和尿囊组成的富含血管的胎膜组织，存在于爬行类动物和鸟类的蛋壳附近，并且构成大多数哺乳动物的胎盘

The Chinese alligator is one of the most endangered reptiles in the world.

扬子鳄是世界上最危险的爬行动物之一。

Among them are 1,175 birds, 414 beasts, 196 amphibious animals, 315 reptiles and over 2,000 species of fish.

其中鸟类1，175种，兽类414种，两栖类196种，爬行类315种，鱼类2，000多种。

The Giant Toad and Andean Iguana are some examples of reptiles.

巨型蟾蜍和安地斯山的鬣蜥是爬行动物的代表。

Such as: all kinds of whales, dolphins, seals, sea lions, dugong and so on. 2, marine reptiles, reptiles body was horny scales, in the land of the cold-blooded animal breeding. 3, marine birds, marine birds in a narrow range, in the China Sea recorded a total of 183 kinds of birds.

各种鲸类、海豚、海豹、海狮、儒艮等。2、海洋爬行动物，爬行动物是体被角质鳞片，在陆上繁殖的变温动物。3、海洋鸟类，海洋鸟类的种类不多，在中国海共记录了183种海鸟。

Lizards is a major group of reptiles, which plays an important role in the evolution of the vertebrates. Studies on their evolution, especially the molecular and cytogenetical evolution, is of great significance to reveal the evolutionary history of reptiles and futherly that of all the vertebrates.

蜥蜴类是爬行动物的一个主要类群，在整个脊椎动物的进化中有承前启后的重要作用，对其进化的研究，尤其是分子和细胞遗传学进化的研究，对了解爬行类乃至于整个脊椎动物的进化史具有重要的理论意义。

A variation in gastrulation involving the movement of cells into endodermal and mesodermal positions through the thickened primitive streak arose in reptiles and can still be seen in bird and mammalian embryos lending support to the theory that birds and mammals evolved from reptiles.

密实的原肠胚通过细胞运动进入内胚层和中胚层，爬虫，鸟，哺乳动物的胚胎都如此。因此提出这样的理论，鸟类和哺乳动物是由爬虫进化而来的。

The "yes" or "no"(1 or 0) of distribution of reptiles in Guangdong Province were regarded as two-state character. The relative coefficient was taken for the similar degree of reptiles in every two zoogeographical provinces. The cluster analysis was taken by group average method. The characteristics of geographical distribution and the comparison between the result of cluster analysis and the geographical distribution of reptiles in Guangdong Province are discussed.

将各种爬行动物在广东4个动物地理省（粤北、粤东、粤西、沿海）分布的有或无作为二元性状，用联合系教来表征每两个动物地理省爬行动物组成的相似程度，以类平均法进行聚类分析，结果表明爬行类在广东各动物地理省的分布受地形明显影响，论述了广东省爬行动物地理分布的特点，并对聚类结果与动物地理区划进行了比较。

They lived alongside with marine reptiles (such as ichthyosaurs, mosasaurs, plesiosaurs) and flying reptiles.

他们和哺乳类爬行动物和飞行类爬行动物处于同一时代。

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。