干线运输

trunk, metastomium

sympathetic trunk【解剖】;truncus sympatheticus【解剖】

trunk, metastomium

one-way trunk【通信】;one-way trunk line【通信】;single action trunk【通信】

nerve trunk

posterior vagal trunk

pulmonary trunk, truncus pulmonalis(拉)

trunk, metastomium (环节动物)