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以上来源于: WordNet
N either of a pair of fins, situated just behind the head in fishes, that help to control the direction of 胸鳍
The first pectoral fin ray of the male is somewhat thicker than that of female.
第一胸鳍曙光男是有点粗多于女生。
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 ups and downs experiment proves that the pectoral fin on different angle influences the fish to move ups and downs.
在机器鱼的升潜试验中论证了胸鳍不同转角对升潜运动的影响。
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