By using the concept of "germinal epithelium",the researches on the gonadal development of Pisces,Aves and Mammalia were unifying to some extent then their characters were convenient for compared.
使用"生殖上皮"这一概念,一定程度上将鱼纲和鸟纲,哺乳纲的性腺发育统一起来,便于比较它们的异同。
Fast man Diary" is a general principle of Lu Xun s novels written in the period of the May 4th movement of 1919, which can be found in his works from theme, craftsmanship and artistic characteristics.
《狂人日记》是五四时期鲁迅先生小说创作的总纲 ,这可以从其作品的思想内容和艺术特色两方面来认识。
a soft-finned fish of the order Cypriniformes.
硬骨鱼纲有软鳍的鱼。
Any of the class Chondrichthyes, having a cartilaginous skeleton and including the sharks, rays, and skates.
软骨鱼有一套软骨架的软骨鱼纲中的一种，包括鲨鱼、魟鱼和鳐鱼
Any of numerous fishes of the class Chondrichthyes, characterized by a cartilaginous skeleton and placoid scales and including the sharks, rays, and skates.
属软骨鱼纲的鱼软骨鱼纲鱼的一种，以软骨骨架和板状鱼鳞为特征，包括鲨、鳐、灰鳐
a class of fish having a skeleton composed of bone in addition to cartilage.
其骨骼由骨和软骨组成的一个鱼纲。
Molecular Phylogenetics and Population Genetic Structure of Genus Pelteobagrus (Teleostei, Bagridae);
黄颡鱼属（硬骨鱼纲，鲿科）鱼类分子系统发育及种群遗传结构的研究
A Study of Self-interaction Absence of Hemoglobin in Pisces Cyprinu Carpio and Amphibia Rana Catesbeiana and Its Significance for Evolution of Species
鱼纲动物鲤鱼和两栖纲动物牛蛙血红蛋白自身不相互作用的研究及其进化意义
Objective: To study the self-interaction of hemoglobin in Pisces Cyprinus carpio and Amphibia Rana catesbeiana.
目的：研究鱼纲动物鲤鱼和两栖纲动物牛蛙血红蛋白自身的相互作用。
a seine designed to be set by two boats around a school of fish and then closed at the bottom by means of a line.
用两条船拉曳的鱼网，碰到鱼群时它们合围然后由纲线收起鱼网。
Any of various fishes of the group Dipnoi, which includes the lungfishes, characterized by modified lungs that enable them to breathe atmospheric air.
肺鱼一种属于肺鱼亚纲的鱼类，包括肺鱼，它具有可通过更改肺使具呼吸大气空气特征
"dipnoan:any of various fishes of the group Dipnoi, which includes the lungfishes, characterized by modified lungs that enable them to breathe atmospheric air."
"肺鱼:一种属于肺鱼亚纲的鱼类,包括肺鱼,它具有可通过更改肺使具呼吸大气空气特征."
The small, dark egg of certain crustaceans or fishes.
动物卵，鱼卵某种甲壳纲动物或鱼的小且暗色的卵
PHYLOGENETIC RELATIONSHIPS OF GALEASPIDS(AGNATHA)
盔甲鱼亚纲(无颌类)的系统发育关系(英文)
The Primary Investigation on the Xenotransplantation of Hepatocytes in Donor and Recipient Combination of Tilapia to Rat;
不同纲（罗非鱼/大鼠）肝细胞移植的初步探讨
eellike cyclostome having a tongue with horny teeth in a round mouth surrounded by eight tentacles; feeds on dead or trapped fishes by boring into their bodies.
似鳗的圆口纲脊椎动物，舌头上有锉牙，圆形嘴外有八只触角；吃死鱼或通过刺入鱼的身体捕捉鱼。
Any of various mostly extinct bony fishes of the subclass Crossopterygii, of which the coelacanth is a living representative.
总鳍鱼内鼻孔亚纲的各种大多已灭绝了的硬骨鱼，腔棘鱼为其现存种类代表
any cold-blooded vertebrate of the class Reptilia including tortoises turtles snakes lizards alligators crocodiles and extinct forms.
爬行纲的冷血的脊椎动物,，包括乌龟、蛇、晰蜴、鳄鱼和已灭绝的形式。
hornworts; liverworts having a thalloid gametophyte; in some classification systems included in the class Hepaticopsida.
金鱼藻；有叶状配偶体的地钱；在有些分类中，被归于苔纲中。
Rejection of discordant(tilapia-to-rat)hepatocyte xenotransplantation
不同纲(罗非鱼/大鼠)肝细胞异种移植的排斥反应(英文)