查询词典 pectoral fin

One reason they thought that is because a fossilized skeleton of an ancient fish didn't appear to have any fingers. Or at least any distinct digits in its pectoral fin.

这些科学家这样思考的一个理由是因为从一只古代鱼的化石骨骼上没有发现任何的手指，至少是在这只鱼的胸鳍里没有发现明显的手指。

The pectoral fin's motion has been researched in this thesis.

本文研究胸鳍的运动和装备胸鳍推进系统仿生水下机器人空间六自由度运动。

At the moment the male will keep the jitter and frequent rowing pectoral fin.

此刻，雄鱼将会不停的抖动，并频繁的划动胸鳍。

The pectoral fin motion model and the hydrodynamic performance's data which we obtained in this thesis are useful for our future design work.

本论文工作对未来相关仿生水下机器人的设计开发工作具有参考价值。

Or at least any distinct digits in its pectoral fin. But tetrapods, which evolved from fish, did.

但是从鱼类进化来的四足动物却有这种结构。

In a second paper in the journal, the scientists describe in depth how the pectoral fin of the fish serves as the origin of the tetrapod limb.

在第二篇文章中，科学家详细描述鱼的胸鳍如何担当tetrapod肢体的起源。

Any of various widely distributed marine fishes of the family Triglidae,having large fanlike pectoral fin s and a large armored head.

鲂？一种分布广泛的鲂？科海鱼，有扇状的胸鳍，头部大而有甲

For the sake of raising the under water propulsion properties of Robo-Mackerel, An analytical discussion was made on the relationships of each dynamics parameters of the swinging of mechanical pectoral fin and the above stated targets, and the optimal value of each dynamics parameters were proposed.

为有效地提高Rob-Mackerel的水下推进性能，分析讨论了机械胸鳍摆动各运动学参数和上述指标的关系，并提出各运动学参数的最优值。

This findings are the first to provide in vivo evidences for IGFBP-3 playing an important role in regulating development and growth of pharyngeal cartilage and otic vesicle, differentiations of optic and motor neuron, as well as its involving in the development of eye, pineal gland and pectoral fin bud in zebrafish.

这些新的发现，首次提供在体证据证明 IGFBP-3 在调节斑马鱼咽弓、内耳的生长发育、视神经和运动神经的分化过程中起着重要作用，并参与调节眼睛、松果腺、胸鳍的发育过程。

A small croaker of North American Atlantic waters, having a dark mark above each pectoral fin and valued as a food and sport fish.

斑头鸽一种产于北美洲大西洋水域的喙上方有一斑点的鸟，胸鳍上带有黑色斑纹，可作肉用或训练捕鱼

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。