A small conical tube located just ahead of the anal fin and usually visible only during, or shortly before, spawning, through which gametes are expelled.
英
美
释义
一种小的锥形管正好位于臀鳍之前,通常只有在产卵的时候或之前一点会被看见,期间配子会被排出。
把海词放在桌面上,查词最方便
触屏版
|
电脑版
©2003 - 2024 海词词典(Dict.cn)
立即下载