龙骨,小鳍和盔甲帮助引导水流流过身体表面,他们用这种方式来降低水的阻力(看图示)。
The keels, finlets, and corselet help direct the flow of water over the body surface in such as way as to reduce resistance (see the figure).
每片鳍状木结构都有一系列小的挤压处,水平堆叠时,在木棚外立面创建了一个森林模式。
Each fin has a series of small extrusions that, when stacked horizontally, creates the forest pattern that defines the shed exterior.
一种生活在大西洋深海里的红蓝色鲈亚目食生鱼(瓦片鱼) ,颈背有一个肉质的垂下物,身体上部和鳍上有黄色的小斑点。
A reddish-blue percoid marine food fish (Lopholatilus chamaeleonticeps) of deep Atlantic waters, having a fleshy flap on the nape and small yellow spots on the upper sides and fins.
这片 小 鳍可以减少乱流,藉此改善通过前轮附近的气流。
This fin reduces turbulence and hence improves the airflow passing close to the front wheels.
这片 小 鳍可以减少乱流,藉此改善通过前轮附近的气流。
This fin reduces turbulence and hence improves the airflow passing close to the front wheels.
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