背鳍

Among the largest bony fish; pelagic fish having an oval compressed body with high dorsal and anal fins and caudal fin reduced to a rudder-like lobe; worldwide in warm waters.

大型的多骨鱼；远洋鱼，椭圆体形，背鳍和尾鳍高，尾鳍退化为似舵的突出物；遍布世界各地的温暖水域。

Any of a large group of fishes of the superorder Acanthopterygii,having bony skeletons and spiny rays in the dorsal and anal fin s 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

I was keep going towards more details, particularly on fins, gill cover, anal fin, soft dorsal fin and caudal fin area within 2nd and 3rd level of subdivision.

我继续深入下去，尤其是在二级和三级细分下对鳍，鳃盖，臀鳍，背鳍软和尾鳍。

Any of several baleen whales of of the family Balaenopteridae having longitudinal grooves on the throat and a small pointed dorsal fin.

几种喉部有纵向沟槽且背鳍小而尖的须鲸科长须鲸。

Their backs were battleship gray topped with a saw-toothed line of small yellow dorsal fins.

它们的背部是军舰的灰色，最上方是呈锯齿状的黄色背鳍。

Their backs were battleship gray topped with asaw-toothed line of small yellow dorsal fins.

它们的背部是军舰的灰色，最上方是呈锯齿状的黄色背鳍。

It has the large teeth and straight edged first dorsal fin characteristic of all bonito.

它有大牙齿和所有鲣直边第一次背鳍特性。

Its dorsal fin was in front of me. I was screaming for help.

它的背鳍就在我的前面，我尖声呼救。

The most important part of our scientific observation was to see whether they had nicks on their dorsal fin.

我们要做的科学观察最重要的部分是看看在他们的背鳍上是否有小疤痕。

We know this because we can distinguish the male by their large dorsal fin.

我们能知道是因为可由大背鳍区别为雄性。

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％。