| 释义 |
pectoral fin ˈpektərəlfin 短语⁹⁰⁸⁸⁷⁺⁷
基本英英例句例句
n.鱼胸鳍
水中鱼儿
Noun:
either of a pair of fins situated just behind the head in fishes that help control the direction of movement用作名词Winglike pectoral fins extend along the sides of the head.翼状的胸鳍沿头的两侧延伸生长。
Oddly enough, this ventilation shift may have kicked off the gradual morphing of the shoulder girdle and pectoral fins.奇怪的是，这呼吸上的改变有可能启动了前肢带与胸鳍的形态逐渐改变。 The design of a bionic underwater vehicle, which includes a central main module, a pectoral fin module, a caudal module and a control module is presented.
针对小型水下航行器开展了系统方案设计，系统主要包括中央主体模块、胸鳍模块、尾部推进模块及控制模块。 cnki
Finally they tied ropes to the shark's tail fin and behind its pectoral fin, and attached these ties to the rescue vessel, which towed the shark out through the harbour estuary.
最后他们用绳子绑在鲨鱼尾鳍和胸鳍后面，把绳子绑在救援船上，将鲨鱼拖出港口。 yeeyan
Male anemonefish frequently visits the nest to fan the eggs with his pectoral fin and to remove dead eggs and debris with his mouth.
雄性小丑鱼的责任是守卫著正在孵化的胚胎；牠还经常为巢穴打扫或去除己死的胚胎。 lesmart
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。 kuenglish |