词汇	主动脉峡
释义	主动脉峡医aortic isthmus；isthmus of aorta
随便看	railway operation Railway operation and dispatching system Railway operation and management modes railway operation fund railway operation information system railway operation mileage railway operation safety railway operator railway optical cable digital channels railway optic fiber transmission network Railway Ordnance Repair Shop railway overcrossing railway overpass railway-owned railway-owneds railway package transportation Railway Parcel railway parcel transportation railway pass railway passage railway passenger railway passenger capacity Railway passenger car railway passenger cars railway passenger dedicated line