pelvic fin
基本解释
- [鱼] 腹鳍
同根派生
英汉例句
- Prepelvic length From the base of the anteriormost pelvic fin ray to the anteriormost point on the head (snout or upper lip).
腹鳍前的长度从腹鳍最前面鳍条的基底到头部(吻部或上唇)最前面的端点。 - The fanning movements with the pelvic fins are sporadic.
变径动作与腹鳍,是偶发事件。 - Most species are small bottom dwellers with a weak suction cup formed by the fusion of their pelvic fins.
大部分为底栖鱼,特征是具一个由腹鳍愈合而成的吸力不强的吸盘。 - Any of numerous usually small spiny - finned fishes of the family Gobiidae, having the pelvic fins united to form a suction disk.
?虎鱼?虎鱼科的一种通常小的带棘鳍的鱼，具有聚合成吸盘的腹鳍 - Two-winged species have only the pectoral fins enlarged; four-winged species have Both the pectoral and the pelvic fins enlarged.
有些种类具双翼而仅胸鳍较大,有些则有四翼,胸、腹鳍皆大。
词组短语
- pelvic c fin 腹鳍
- Pelvic Fin Posterior Margin 腹鳍后缘
- Pelvic fin inner margin 腹鳍内缘
- origin of pelvic fin 腹鳍起点
- pelvic fin length 腹鳍长
短语
英英字典
- either of a pair of fins attached to the pelvic girdle of fishes that help to control the direction of movement during locomotion
柯林斯英英字典
专业释义
- 腹鳍
- 腹鳍