ventral fin

常见例句

双语例句

• By 30 days, the bud of ventral fin appeared;
  孵出后第30天，腹鳍芽出现；
• Dorsal fin , tail fin and fat fins slightly yellow, pectoral fin , and ventral fin Tunqi gray.
  背鳍、脂鳍和尾鳍稍带浅黄色，胸鳍、腹鳍和臀鳍灰白色。
• The design is a nod to freshwater knifefish, which can move forward and backward, and hover, by rippling an elongated ventral fin.
  Gymnobot的设计灵感来自于一种名为宝刀鱼（knifefish）的淡水鱼，这种鱼利用腹部长长的鱼鳍，在水中可以进退自如，还可以作出水中盘旋等动作。
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