背鳍

15He was built as a sword fish except for his huge jaws which were tight shut now as he swam fast, just under the surface with his high dorsal fin knifing through the water without wavering.

它长得和剑鱼一般，不同的是，在快速游动时它那巨大的双颚是紧闭的。它在水面下游，高耸的背鳍似刀子般划破水面，一点也不抖动。

The huge skull invites pregnant son of 200% thick thin, from the beginning go to the shape that the tails all small and softly engrave a dorsal fin, suddenly and violently eyes of Tu, turn over the obtuse-angled of winding upward, the most poor form exerts mutually of is two Liao tooths which peep out the outside of the lips, be suffused with the You green Rui light, from the muscle Sui of jade quality deeply a chilly soldier spirit.

巨大的头颅约有身子的两倍粗细，从头至尾都细细地刻出背鳍的形状，暴突的眼睛，向上翻卷的钝角，最穷形尽相的是两颗露出唇外的獠牙，泛着幽绿的锐光，从玉质的肌髓中透出一股冷冷的兵气。

The fish is propelled by undulation s of a long-based dorsal fin while the body axis is in many cases held straight in swimming.

以依靠长背鳍推进的&尼罗河魔鬼&为研究对象，对柔性长鳍波动推进模式的运动学进行了研究。

The length of the dorsal fin is characteristic of Cichlids but these fish do not look like the discus. Look more like Apistogrammas.

背鳍的长度是丽鱼科鱼的特征，但图中的这些鱼看上去不像七彩，反倒更像Apistogrammas。

Dogfishes having a spine in each dorsal fin .

背鳍上各有一刺的角鲨鱼。

Wakin features in sharp head, no abnormal protrusion of eyes, dorsal fin and open tail fin, so do all the fantails.

头尖，眼正常、不突出，有背鳍，尾鳍为开放型，这是文金的特点，也是贯穿所有文鱼的特点。

The dorsal fin acts as a keel, giving the dolphin some stability as it swims.

作为龙骨的背鳍，因为它使一些稳定海豚游泳。

Long and thin mouth, back Light gray or blue, pure white for the ventral, dorsal fin-shaped as a triangle, two pectoral fin like the palm of your hand, flat tail fin in the middle fork, good at swimming, the maximum speed of 80 km around .

嘴部又长又细，背呈浅灰色或蓝色，腹面为纯白色，背鳍形如一个小三角，胸鳍宛如两只手掌，尾鳍扁平，中间分叉，善于游水，时速可达80千米左右。

Both are fish-eating marine organisms of about the same size. Both have dorsal fins, pectoral fins, tail fins, and similar, streamlined shapes.

它们大小一样而且都食鱼的海生生物，它们都有背鳍，胸鳍，尾鳍以及相似的流线型鱼身。

Heavy-bodied reptile with a dorsal sail or crest; of the late ''.

有背鳍和头冠、体重的爬行动物；产于晚古生代。

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％。