| 释义 |
pectoral fin
释义
胸鳍：鱼类身上对应于四足动物前肢的鳍之一。
例句
1·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。
2·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。
3·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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