背鳍

Black-and-white drumfish with an erect elongated dorsal fin.

背鳍上各有一刺的角鲨鱼。

Of,relating to,or being the marine teleost fishes of the order Pediculati,characterized by pectoral fin s extending from an armlike process and a dorsal fin ray that serves as a lure for prey.

柄鳍目鱼的属于、有关或是柄鳍目硬骨海鱼的，以从臂状突起延伸而成的腹鳍为特征且其背鳍骨可作捕杀猎物的诱饵之用

Predatory black and white toothed whale with dorsal fin common in cold seas .

黑白色食肉有牙齿和背鳍的鲸；常见于寒冷的海水中。

Behind the dorsal fin , rainbows have an adipose fin that is commonly clipped from fish raised in a hatchery.

虹鳟和刚头常出现在溶氧充沛的湖泊或溪流中，这些地方夏季的水温通常不超过12°C ，在虹鳟背鳍的后面有一个脂肪鳍，人工孵育放流的鱼通常会把它剪掉。

The deformation always appears near the points of the origin of pectoral fin or the origin of dorsal fin to the posterior margin of caudal fin, and is mostly accompanied by flaccidity of caudal fin end.

畸形弯曲位置主要发生在近胸鳍起点处以及背鳍起点至尾鳍末端之间，多伴有尾鳍末端下垂。

Like the dorsal fin, flukes have no bone or muscle inside.

像背鳍、尾鳍没有骨骼或肌肉内。

Any of several marine fishes of the family Trachinidae, having venomous spines on the gill cover and first dorsal fin.

龙鳖龙鳖科的几种海鱼之一，在鳃盖和第一背鳍上的许多毒刺

Any of several marine fishes of the family Trachinidae,having venomous spines on the gill cover and first dorsal fin.

龙鳖龙鳖科的几种海鱼之一，在鳃盖和第一背鳍上的许多毒刺鱼的鳃和猫的肺是类似物。

Lower jaw with 4-5 large sharp rays. Rear edge of gill cover has two flat sharp spines on each side. Scales round and small. Body brownish yellow, very shiny with irregularly placed coloured spots. Normally black or dark grey stripes from the lips through the eyes above the lateral but along the dorsal line.

鳞小而圆形，身体呈褐黄色，有明显耀目而且不规则有色班纹，通常在嘴唇至眼部，身体侧面至背鳍带有黑色或深灰色的条纹。

One of the lakes along the trail abounds in grayling, surface feeders with long dorsal fins.

湖的一个沿着踪迹有很多的褐色蝴蝶，浮在水面的喂食者用长背鳍状物。

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％。