pelvic fin

pelvic fin 基本解释

n. <动>腹鳍

pelvic fin 用法和例句

1、A compact, oval fish with a long, filamentous ray extending from each pelvic fin, it weighs up to 20 lbs.

体结实，卵圆形，腹鳍各具具长丝状鳍条，体重可达9公斤。

2、body covered with ctenoid scale, lateral line absent, two dorsal fins, pelvic fin fused to form elongated suction disc.

体被栉鳞，无侧线，背鳍两个，腹鳍愈合成长吸盘状。

重点词汇

pelvic a. 骨盆的 [医] 骨盆的