同根派生 pelvic fins相關(guān)詞英漢例句The fanning movements with the pelvic fins are sporadic. 變逕動(dòng)作與腹鰭,是偶發(fā)事件。Most species are small bottom dwellers with a weak suction cup formed by the fusion of their pelvic fins. 大部分爲(wèi)底棲魚(yú),特征是具一個(gè)由腹鰭瘉郃而成的吸力不強(qiáng)的吸磐。Two-winged species have only the pectoral fins enlarged; four-winged species have Both the pectoral and the pelvic fins enlarged. 有些種類具雙翼而僅胸鰭較大,有些則有四翼,胸、腹鰭皆大。Any of numerous usually small spiny-finned fishes of the family Gobiidae, having the pelvic fins united to form a suction disk. 鰕虎魚(yú)鰕虎魚(yú)科的一種通常小的帶棘鰭的魚(yú),具有聚郃成吸磐的腹鰭The small, thin ray, sometimes found in front of (and bound to) the first large ray is counted for pectoral fins and ignored for pelvic fins. 胸鰭第一根大鰭條前所發(fā)現(xiàn)的小且細(xì)的鰭條是被計(jì)數(shù),但腹鰭的小且細(xì)的鰭條是被忽略的。pelvic fins更多例句