CONSTRUCTION: It is composed of an inner rubber protection layer, middle rubber layer, steel wire spiral layer and external rubber cover.
结构：由内胶层、内胶保护层、中胶层、钢丝缠绕层和外胶层组成。
Spiral staircase is not only a new vertical transportation system connected to the function of each layer, Also as a gallery show streamline.
螺旋楼梯不仅是重新连接各层功能的新的垂直交通体系，也作为陈列馆的展示流线。这条“天路”寓意着云端漫步，也是云南公路人不断向上进取的象征。
Objective to discuss how to use the ct scan and reconstruction technique of 16 layer spiral ct on diagnosis of acute pancreatitis.
目的探讨如何准确、合理运用16层螺旋CT扫描技术及重建技术对急性胰腺炎的诊断。
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