鳍

Any of various brightly colored fishes of the family Balistidae of warm coastal waters,having a roundish body and an erectile spine on the anterior dorsal fin that locks upright when the fish is threatened.

科的鱼，生长于温暖的海岸水域中，体型较圆，前部的前鳍有两根直立的硬刺，如果受到威胁，硬刺便直立不动

Catch big fish including Mahi-mahi, yellow fin tuna sailfish among a lot more.

您可以捕获海豚鱼、黄鳍金枪鱼或者旗鱼。

And though the walrus is an Arctic species and thus much harder to study in the wild than the elephant seals and sea lions that flop onto the beaches of Northern California, scientists are gathering evidence that Odobenus is the most cognitively and socially sophisticated of all pinnipeds.

由於海象是北极物种，因此在野地观察研究，远比会跳上北加州海滩嬉戏的象海骨M海狮棘手。科学家正在搜集证据，盼能证明海象的认知及社交能力，强过所有鳍足类。

The sea lion's flippers are also more flexible than the seal's.

海狮的鳍状肢还比海豹的灵活。

It is foundthat the bow fin greatly improves its longitudinal seaworthiness.

试验表明，首鳍使侧壁式气垫船的纵向耐波性能有明显改善。

These small fins are almost completely transparent and difficult to see as they undulate minutely to move the creature sedately through the water, completing the illusion of floating seaweed.

这些小鳍几乎完全透明，很难看到他们细细移动起伏在水中的生物庄重，完成幻想漂浮海藻。

When a fish swims underwater, skeletal muscle's contraction is controlled by central nervous system, which transfers the tension and displacement to executive organs such as fins and skins and interacts with surrounding fluid to achieve self-propulsion. To study the muscle activity and intension, this paper introduces the electromyography.

鱼在水中游动时，骨骼肌在中枢神经系统的控制下进行主动收缩，将力和位移传递给鳍和皮肤等执行器官，再通过执行器官与水进行力的相互作用和能量的交换后推动鱼体自身运动。

On the Mexico coast, an American businessman sat on the shipside of a small fishing village, looking at a Mexico fisherman rowing a tiny boat in shore, with several rhubarb fish in his boat; the businessman laid it on with a trowel to fisherman for those slap-up fish, and asked him how long he took to catch so many fish?

在墨西哥海岸边，有一个美国商人坐在一个小渔村的码头上，看着一个墨西哥渔夫划着一艘小船靠岸，小船上有好几尾大黄鳍鲔鱼；这个美国商人对墨西哥渔夫抓这么高档的鱼恭维了一番，问他要多少时间才能抓这么多？

Any of various wingless insects of the order Thysanura,such as the silverfish,having bristlelike posterior appendages.

衣鱼一种缨尾目的无翅昆虫，长有刚毛状后鳍，如蠹虫

This paper mainly discusses the analysis and design of a finline single-ended mixer and detector.

本文描述了Ka波段鳍线单端混频器和检波器的分析与设计。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。