焊接后所有四个球,最后暴露折端弯曲的轮廓匹配的弓上的支持。
Upon welding all four beads, the last exposed gusset end is bent to match the contour of the upper support bow.
弓部向外延伸有一第一端与一第二端,分别扣合在一接地轨道上。
The bow part is extended outward to form a first end and a second end which are buckled on a grounding rail respectively.
主动脉弓近端斑块较主动脉弓远端斑块CIS复发率高;
Proximal aortic arch plaques compared to distal aortic arch plaques by a high CIS recurrence rate;
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