位于靠近头后面的更小的胸鳍用于控制方向。
Even smaller pectoral fins located near the back of the head are used for steering.
多数细长的无鳞海水鱼，有大的胸鳍和退化的腹鳍。
Elongated mostly scaleless marine fishes with large pectoral fins and reduced pelvic fins.
三对披甲的肢脚和一对导航胸鳍协助这一水泵式运动。
The three pairs of armored legs assist in this pumping motion, as do a pair of pectoral guidance fins.
达到空中后，他们利用身侧的长胸鳍及短腹鳍产生升力，类似于机翼。
Once airborne, they use long pectoral fins and shorter pelvic fins on the sides of their bodies to create lift, much like the wings of an aircraft.
背鳍、脂鳍和尾鳍稍带浅黄色，胸鳍、腹鳍和臀鳍灰白色。
Dorsal fin, tail fin and fat fins slightly yellow, pectoral fin, and ventral fin Tunqi gray.
在北海道外的浅水水域，一只带刺的入侵者利用胸鳍刺爬过闪亮的火山砂。
In the shallow waters off Hokkaido, a barbed poacher crawls across glistening volcanic sand on spiny pectoral fins.
在机器鱼的升潜试验中论证了胸鳍不同转角对升潜运动的影响。
The ups and downs experiment proves that the pectoral fin on different angle influences the fish to move ups and downs.
鲂？一种分布广泛的鲂？科海鱼，有扇状的胸鳍，头部大而有甲。
Any of various widely distributed Marine fishes of the family Triglidae, having large fanlike pectoral fins and a large armored head.
产于非洲和亚洲的热带沿海水域；靠强壮的胸鳍可以在陆地上移动。
Found in tropical coastal regions of Africa and Asia; able to move on land on strong pectoral fins.
分离菌经胸鳍基注射回归感染试验均出现与自然发病相似的症状。
The regression tests in which separated bacteria were injected in the bottom of pectoral fin were all presented with symptoms similar to the natural incidence.
在低速情况下，很多鱼类是利用其胸鳍实现良好的动力定位和机动。
But many fishes use oscillating pectoral fins for their maneuvers at low swimming speed.
同样，飞鱼借助胸鳍所产生的加速气流，就可以对较小的腹鳍产生一定的提升作用。
Flying fish rely on a similar flow of accelerated air from their pectoral fins to provide lift to their smaller pelvic fins.
最后他们用绳子绑在鲨鱼尾鳍和胸鳍后面，把绳子绑在救援船上，将鲨鱼拖出港口。
Finally they tied ropes to the shark's tail fin and behind its pectoral fin, and attached these ties to the rescue vessel, which towed the shark out through the harbour estuary.
他这时看得见它们那又宽又扁的铲子形的头，和尖端呈白色的宽阔的胸鳍。
He could see their wide, flattened, shovel-pointed heads now and their white tipped wide pectoral fins.
由于流场环境中的鱼类动力学建模困难，目前胸鳍模式研究进展受到制约。
Due to the difficulty of dynamics modeling in fish surrounding by the fluid, little progress has been made in the design of the current pectoral locomotion.
蝙蝠鱼是可怜的游泳者，更喜欢用它们的奇妙的适合的胸鳍像脚爬行大约在海底。
Batfish are poor swimmers, preferring to use their strangely adapted pectoral fins like legs to crawl about the seafloor.
体柔软，皮肤光滑，头与胸鳍形成圆或近于圆形的体盘。如不被触及则对人无害。
They are soft and smooth-skinned, with a circular or nearly circular Body disk formed by the head and pectoral fins. They are harmless unless touched or stepped on.
鲫鱼大声喊着，又用力向上跳，这回用了十二分力，连尾巴和胸鳍的尖端都挺了起来。
Crucian carp shouted, and forced to jump up, this time with a twelve component, even the tail and pectoral fin tip is very up.
牛鼻魟得名于其喙部的独特形状，由于胸鳍被一条中折线分割成两瓣，所以看起来就像是牛的鼻子。
The species takes its name from the shape of its rostrum, where the pectoral fins split into two lobes separated by a center crease—creating a feature rather like a bovine nose.
在整个发育过程中，眼、耳囊、心脏、消化道、肾脏、鳔、胸鳍和尾鳍等得到了优先发育。
The eye sac, ear vesicle, heart, digestive tract, kidney, swim bladder, pectoral and tail fin were developed preferentially.
鱼经常会成群的聚集在水面以下，通过拍动胸鳍在水中“飞行”，有时候甚至会像海豚一样跃出。
The rays are often seen gathering in groups near the surface, "flying" through the water by flapping their pectoral fins and sometimes even leaping porpoise-like into the air.
世界上共有大约50种不同种类的飞鱼，但它们其实并不是真正飞行，而是猛地推挤胸鳍跃出水面。
Flying Fish There are about 50 different species of flying fish, although they don’t fly so much as they leap from the water with a push of their powerful pectoral fins.
飞鱼世界上共有大约50种不同种类的飞鱼，但它们其实并不是真正飞行，而是猛地推挤胸鳍跃出水面。
Flying fish There are about 50 different species of flying fish, although they don't fly so much as they leap from the water with a push of their powerful pectoral fins.
我们已知这种欧洲海鳗最大能长到5英尺（1.5米）长，和绝大多数其他鳗鱼物种不同的是：它们通常没有胸鳍。
Known to grow as long as about 5 feet (1.5 meters), moray species generally lack pectoral fins, unlike most other eel species.
攀鲈：一种淡水鱼（攀鲈攀鲈属），生长于亚洲的热带地区，有可呼吸空气的变化鳃及适于在陆地行走的胸鳍。
A freshwater fish (Anabas testudineus) of tropical Asia, having modified gills allowing it to breathe air and pectoral fins adapted for traveling on land.
既然这鱼他看见过一回，他就能想象它再水里游的样子，它那翅膀般的胸鳍大张着，直竖的大尾巴划破黝黑的海水。
Now that he had seen him once he could picture the fish swimming in the water with his purple pectoral fins set wide as wings and the great erect tail slicing through the dark.
既然这鱼他看见过一回，他就能想象它再水里游的样子，它那翅膀般的胸鳍大张着，直竖的大尾巴划破黝黑的海水。
Now that he had seen him once he could picture the fish swimming in the water with his purple pectoral fins set wide as wings and the great erect tail slicing through the dark.
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