查询词典 Perciformes

The spiny eel , belonging to Perciformes, Osteichthyes, is a kind of little freshwater fish distributed in Southern China. In 1998, Our lab detected XX/XY differentiated sex chromosomes in this specie with karyotypic analysis, and then with chromosomal binding and SC observation, we identified that its two largest metacentric chromosomes were X, Y sex chromosomes in 1999. X, Y chromosomes differ each other not only in the distribution of heterochromatin but also in their shapes, which make them could be recognized directly under the light-microscope without any banding treatment.

刺鳅，属鲈形目、刺鳅科(Perciformes，Mastacembelidae)，是广泛分布于中国南方的小型淡水鱼类。1998年，我室通过核型分析，首次发现该物种具有明显分化的异形性染色体，其性别决定类型为XX／XY型。1999年，本室通过染色体显带、精母细胞联会复合体观察，再次确认刺鳅染色体组中最大的一对中部着丝粒染色体为X、Y性染色体，两者不仅已经出现结构异染色质分布上的不同，同时在外部形态上也存在明显差异，识别特征鲜明，在光镜观察下无需显带即能清晰辨认性染色体。

Osteichthyes Perciformes Sparidae.

硬骨鱼纲鲈形目鲷科。

In some classifications nearly or exactly equivalent to the Perciformes which are considered a suborder.

在某些分类中，几乎或完全与被认为是一个亚目的鲈形目相等同。

"Any of more than 800 species of carnivorous fish es (suborder Gobioidei, order Perciformes), found worldwide but especially abundant in the tropics."

鲈形目虎鱼亚目约800余种鱼的统称，为肉食性的小型鱼类。遍布全世界，尤以热带为多。

"Any of more than 800 species of carnivorous fishes (suborder Gobioidei, order Perciformes), found worldwide but especially abundant in the tropics ."

鲈形目虎鱼亚目约800余种鱼的统称，为肉食性的小型鱼类。遍布全世界，尤以热带为多。

Later, chromaffin cells in Perciformes reach the anterior cardinal veins, and subsequently, in both Perciformes and Salmoniformes, they reach the developing posterior kidney.

后来，铬细胞鲈到达前主教脉，随后，双方鲈、鲑鳟鱼类、他们到达后肾发展。

In Perciformes and Salmoniformes, numerous chromaffin cells are also present in the posterior kidney, derived from the opisthonephros, in contact with the caudal vein.

在鲈、鲑鳟鱼类、无数铬细胞也存在于肾脏后部，从opisthonephros，接触尾静脉。

Perciformes—Dicentrarchus labrax, Sparus aurata, Diplodus sargus, Oblada melanura.

鲈-马拉巴4~8、黑鲷Sparus姜子、diplodussargus，obladamelanura。

Any of numerous spiny-finned fishes of the order Perciformes.

鲈形目中多种有刺鳍的鱼。

A family of fish or the order Perciformes including robolos.

鲈形目的一科鱼，包含锯盖鱼。

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。