常見(jiàn)例句The zooplankton mainly contains copepodid, cladocerans and so on The zoobenthos mainly contains shell and limnodrilus nearly about 21 species. 浮遊動(dòng)物主要有橈足類、枝角類、輪蟲(chóng)類等;底棲動(dòng)物主要是蚌、螺類、水絲蚓等21種。copepodid larva 橈足幼躰(動(dòng))copepodid stage 橈足幼躰期 返回 copepodid