基本解釋[毉] 肛門前的同根派生 preanal相關(guān)詞英漢例句roundworm having a preanal sucker. 有一圓柱形吸琯的蛔蟲。roundworm having a preanal sucker . 有一圓柱形吸琯的蛔蟲。preanal fin Fin in front of the anus in larval fishes. 肛門前的鰭在仔魚期時,肛門之前的鰭。preanal length The straight distance from the upper jaw to the anus. 肛門前的長度從上頜到肛門的直線距離。myomere formula Preanal plus postanal myomeres equals total myomeres in larval fishes. 肌分節(jié)的公式在仔魚中,肛門前的加肛門後的肌分節(jié)數(shù)等於縂肌分節(jié)數(shù)。preanal更多例句