他们将

Objective To evaluate the technique of three dimensional angiograph/phlebography (3D-CTA CTV) with multi-slice spiral CT and its clinical application in trauma to blood vessel of the lower extremities.

目的 评价多层螺旋CT血管造影在下肢血管损伤性疾病中的应用价值。

The northern lights arch above the treeline in Churchill, Manitoba, Canada.

北极光呈拱形在排列成行的树林之上，在邱吉尔，曼尼托巴湖，加拿大。