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汉语拼音：dà dòng mài

1.指主动脉。

2.比喻主要的交通干线：京广铁路、京九铁路是我国南北交通的～。

1. 主动脉。从心脏出，分布于头、上肢、胸、腹及下肢等处。

2. 比喻重要的交通运输线。

• It was one of the main arteries which conveyed the traffic of the City to the north and west.

  那是市区通向西北的一条交通大动脉。

• The stem cells grew on these scaffolds for a week before the tubes were sewn into the major artery in each rat's abdomen.

  在试管被缝合到每个大鼠腹中大动脉之前这些干细胞在支持物中生长一个周。

• The complete transposition of the great arteries (TGA) is one of the commonest congenital cardiac anomalies in cyanosis .

  完全性大动脉错位是一种常见的紫绀型先天性心脏畸形，如不治疗婴儿早期即死亡。

• Last Friday he suffered a torn aorta, a large artery that carries blood from the heart to the body.

  上周五，他的主动脉破裂。主动脉是血液从心脏流向全身的大动脉。

• Fruits and vegetables are full of antioxidant nutrients that protect the heart and its arteries.

  水果和蔬菜是全面的抗氧化营养素，可保护心脏及大动脉。

• Today, I sit in a surgical ICU beside my favorite Jack as he recovers from a five-hour operation to repair a massive aortic aneurysm.

  今天我正坐在外科护理组的病房里，旁边是我最爱的人杰克，他正在从一个长达四五个小时的大动脉瘤手术中慢慢苏醒。

• Progression of symptomatic intracranial large artery atherosclerosis is associated with a proinflammatory state and impaired fibrinolysis.

  有症状的颅内大动脉的进展与促炎症状态和纤维溶解作用相关。

• As a highly industrialized countries, has become a central artery river in the world is one of the busiest commercial waterway.

  作为高度工业化国家的中央河流大动脉，已成为世界上最繁忙的商业水道之一。

• The scoundrel useless knife stabs the heart, but cuts the aorta accurately, obviously is the specialized knife skill.

  歹徒没用刀刺中心脏，但准确割伤大动脉，显然是专业刀法。