常見例句雙語例句Comparative observation with light microscopy and scanning electron microscopy shows: the hatching gland occurs at stage of embryo development.觀察結果表明，胚胎發(fā)育期有孵化腺發(fā)生。The alkaline protease activity was identified after hatching. Acid protease was not present until the appearance of the gastric gland (about 15 days old).結果表明，大菱鲆初孵仔魚體內就已具有堿性蛋白酶活性，而酸性蛋白酶活性在15日齡左右胃腺出現(xiàn)時才測得。 返回 hatching gland