背鳍

The typical symptoms of the fulminant hemorrhage tilapia in Hainan are as follows: congestion and hemorrhage in skin and muscle, congestion in the pterygiophore and decay in the end of dorsal fin and caudal fin, congestion and swelling in spleen, enlargement in gallbladder, rubefaction and congestion in liver, congestion and hemorrhage in abdominal wall and intestinal wall.

海南地区暴发的罗非鱼出血症的典型症状为：皮肤和肌肉大面积充血、出血，背鳍和尾鳍鳍条末端腐烂、鳍条充血，肝脏充血发红，脾脏充血、肿大，胆囊肿大，腹腔壁和肠壁都有不同程度的充血或出血。

Any of a large group of fishes of the superorder Acanthopterygii,having bony skeleton s and spiny rays in the dorsal and anal fins and including the bass,perch,mackerel,and swordfish.

棘鳍目鱼棘鳍鱼总目的各种鱼类，有骨质的外骨骼和刺状的背鳍骨以及近肛门的鳍。还包括鲈鱼，鲭鱼，和箭鱼

Any of a large group of fishes of the superorder Acanthopterygii, having bony skeletons and spiny rays in the dorsal and anal fins and including the bass, perch, mackerel, and swordfish.

棘鳍目鱼棘鳍鱼总目的各种鱼类，有骨质的外骨骼和刺状的背鳍骨以及近肛门的鳍。还包括鲈鱼，鲭鱼，和箭鱼

Voracious snakelike marine or freshwater fishes with smooth slimy usually scaleless skin and having a continuous vertical fin but no ventral fins.

任一种蛇形的淡水鱼，体表光滑无鳞，有连续的垂直背鳍，缺少腹鳍。

Diamond Head is the name of a volcanic tuff cone on the Hawaiian island of O?ahu and known to Hawaiians as Lē?ahi, most likely from lae 'browridge, promontory' plus ?ahi 'tuna' because the shape of the ridgeline resembles the shape of a tuna's dorsal fin.

钻石头的名字是火山凝灰岩锥的夏威夷群岛的瓦胡岛和已知夏威夷作为Lēahi ，最有可能从角' browridge ，海角'加阿伊'金枪鱼'，因为形状的山脊线的形状类似于一个金枪鱼'县背鳍。

A primitive bony freshwater fish Amia calva of central and eastern North America with a long spineless dorsal fin .

弓鳍鱼北美洲中部和东部的一种原始，多骨的淡水鱼，具有长的无脊的背鳍

They are clumsy swimmers, waggling their large dorsal and anal fins to move and steering with their clavus.

翻车鱼并不是好的泳手，摆动着巨大的背鳍和腹鳍，以 clavus 左右方向。

By pushing a whole series of branching points in gnathostome evolution out of the Devonian and into the Silurian, the discovery of Guiyu also signals that a significant part of early vertebrate evolution is unknown Fig.

此外，鬼鱼的背鳍棘刺和其前方具有棘刺的骨板很可能也是原始特征。上述特征在早期有颌类中广泛分布，而它们却同时出现鬼鱼身上，使得我们首次观察到了肉鳍鱼类一系列重要鉴别特征的演化顺序。

Gymnarchus niloticus,propelled by undulations of a long-based dorsal fin,is a typical representative of median and/or paired fin fishes.

&尼罗河魔鬼&采用长背鳍波动推进方式，属于典型的奇鳍/对鳍推进鱼类。

Gymnarchus niloticus ; long-based dorsal fin ; undulation ; kinematic model

尼罗河魔鬼；长背鳍；波动；运动学模型

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。