科鱼

Any of various tropical marine food fishes of the family Carangidae, which includes the jacks and pompanos.

鲹鲹科的一种热带海洋食用鱼，包括狗鱼和鲳鲹

Type genus of the family Catostomidae.

亚口鱼科的一个模式属。

Any of numerous American lean-fleshed perch-like fishes of the family Centrarchidae.

各种科美洲产的鲈鱼般的瘦肉型鱼。

Type genus of the Chaetodontidae.

蝴蝶鱼科的一个模式属。

Any of various Eurasian and African freshwater fishes of the family Cobitidae, having barbels around the mouth .

鳅鱼属鳅科的各种亚欧和非洲淡水鱼，嘴四周有触须

Long-distance PCR was used to amplify the β-actin gene for black carp based on the β-actin gene sequences of Cyprinidae. Construct of EGFP expression system containing 5'UTR of β-actin gene for black carp was transferred into zygotes of mud loach and COS-7 cells and the results showed that 5'UTR of β-actin gene for black carp could be used as the promoter of the"all-fish"transgene.

基于鲤科鱼类Beta-肌动蛋白基因序列，采用长片段PCR技术，克隆了青鱼β-actin基因DNA片段，并构建了青鱼β-actin基因5'启动调控区绿色荧光蛋白表达载体，通过显微注射泥鳅胚胎和COS-7细胞转染实验，证明了所克隆的青鱼β-actin基因5'启动调控区具有启动调控功能，并用之来构建&全鱼&基因的启动子部分。

Any of various small,soft - finned fishes of the family Cyprinodontidae,which includes the killifishes,topminnows,and many species popular in home aquarium s.

科中的一种小软鳍鱼，其中包括？、底？和许多家庭观赏鱼中常见的品种

Any of various small, soft-finned fishes of the family Cyprinodontidae, which includes the killifishes, topminnows, and many species popular in home aquariums.

鳉鳉科中的一种小软鳍鱼，其中包括鳉、底鳉和许多家庭观赏鱼中常见的品种

Any of various small,soft - fin ned fishes of the family Cyprinodontidae,which includes the killifishes,topminnows,and many species popular in home aquariums.

科中的一种小软鳍鱼，其中包括？、底？和许多家庭观赏鱼中常见的品种

Snapping shrimps belonging to Decapoda are also highly diversitied, forming a large fauna in the world. Gobiids and snapping shrimps share same habitats to perform an intimately symbiotic relationships between them.

貌窸卫是海水鱼中最大的一科，歧异度非常高，是底栖型鱼类的主要组成部份；而枪虾也是一种歧异度很高的甲壳十足类，在全球珊瑚礁海域动物相中的数量占有相当大的比例。

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。