| 释义 |
dorsal fin ˈdɔ:səlfin 短语²²¹⁰²
基本英英例句例句
n.动物背鳍
Noun:
unpaired median fin on the backs of fishes and some other aquatic vertebrates that help to maintain balance用作名词The shark's fin sliced the water.鲨鱼的背鳍像刀样迅速划破水面。
Now he speeded up as he smelled the fresher scent and his bluedorsal fincut the water.那条鲨鱼闻到了新鲜的血腥味，正加速航行，蓝色的背鳍在水中划过。 The ages of S. yunnanensis can be identified through the characteristics of the annual rings of the scales, otoliths and dorsal fin spines.
云南倒刺鲃的年龄可以通过鳞片、耳石、背鳍条上的年轮特征来鉴定。 cnki
Its sail-like first dorsal fin provides stability while swimming.
帆状的第一背鳍在游动时提供了稳定性。 yeeyan
Male lollypop darters have knobs along the top of their dorsal fin that swell large and bright yellow—presumably to mimic eggs and inspire females to lay some.
雄性小鳍镖鲈沿背鳍顶部生有膨大的明黄色小疙瘩，估计这是模仿卵的样子来诱导雌性产卵。 blog.sina.com.cn
The eel has a real“ continuous” vertical fin along the back dorsal fin.
真正的鳗鱼有一个连续的垂直尾翼是沿著背面背鳍。 afinerfansite
They have relatively large scales, a small mouth with weak teeth, and a sail-like, Brightly coloured dorsal fin.
有相当大的鳞片，口小，牙细弱，具帆状且色彩鲜艳的背鳍。 bab
They are cobalt- blue on top and silvery-white below, with a pronounced dorsal fin and a long, lethal, spear-shaped upper jaw.
它的顶部是钴蓝色，下面和银白色；有着明显的背鳍，还有着长长的、能致命的矛状上颚。 yeeyan
We established a kinematic model of the long-based undulatory fin on the basis of analyzing the long-based dorsal fin locomotion and considering the fluid-structure interaction.
在分析长背鳍运动和流固耦合的基础上，建立了柔性波动长鳍的运动学模型； cnki |