| 释义 |
pectoral fins短语⁴³⁴¹³
基本英英例句例句
n.胸鳍原型pectoralfin的复数
名词 pectoral fin:
either of a pair of fins situated just behind the head in fishes that help control the direction of movement用作名词Winglikepectoral finsextend along the sides of the head.翼状的胸鳍沿头的两侧延伸生长。
Oddly enough, this ventilation shift may have kicked off the gradual morphing of the shoulder girdle andpectoral fins.奇怪的是，这呼吸上的改变有可能启动了前肢带与胸鳍的形态逐渐改变。 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.
魟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海面。 yeeyan
Batfish are poor swimmers, preferring to use their strangely adapted pectoral fins like legs to crawl about the seafloor.
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。 danganj
Even smaller pectoral fins located near the back of the head are used for steering.
位于靠近头后面的更小的胸鳍用于控制方向。 yeeyan
Known to grow as long as about5 feet1.5 meters, moray species generally lack pectoral fins, unlike most other eel species.
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。 yeeyan
Many fish larvae hatch without fully formed pectoral fins and all hatch without a swim bladder, so similar problems could occur for them.
很多小鱼孵化出来时，胸鳍还没有完全成形，而且所有的鱼孵化时都还没有形成鱼鳔。所以，它们可能会面临相似的不善于游泳的问题。 kekenet |