digestive systemgastrointestinal tract消化系统
digestive e tract消化道;消化系统
upper-digestive-tract malignant tumors上消化道恶性肿瘤
hemorrhage of digestive tract消化道出血
Digestive tract reconstruction消化道重建;消化道重建术
digestive tract cancer消化道肿瘤;消化道肿瘤待删
digestive tract hormones消化道激素
Superior Digestive Tract上消化道
Digestive tract diseases消化道疾病
⑤Increased length of digestive tract was lower than increased weight of that compared with at birth.
⑤与出生时相比,消化道长度的增长远低于同期重量的增加。
参考来源 - 太行鸡和海兰灰蛋鸡生长期消化生理特性的比较研究Its spore can also infect human by the way of respiratory tract, digestive tract and skin touch.
芽胞可以通过呼吸道、消化道和皮肤接触感染人类，以皮肤型炭疽最常见。
The main results are listed as follows. At the blood circulation stage, the digestive tract appeared and it was a simple undifferentiated tube.
胚胎发育至血液循环期时,消化管出现,呈直管状。
参考来源 - 河川沙塘鳢（Odontobutis potamophila）早期发育过程中的器官发生、营养代谢及其能量收支的研究