Purpose: To evaluate the role of spiral computer tomography angiography (SCTA) in the diagnosis of Pulmonary Embolism (PE).

目的：评价螺旋CT血管造影（SCTA）在诊断肺动脉栓塞（PE）中的作用。

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In other words, keep an ongoing list of all your accomplishments. You can do this on your computer or in a spiral notebook.

换而言之，定期列举你的成就，你可以在你电脑或者活页夹里完成这些。

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Methods A three-dimensional finite element model of maxilla containing palatal implant was built using spiral CT scanning, computer image processing, and CAD technology.

方法采用螺旋CT扫描、计算机图像处理及CAD技术，建立含腭部种植体的上颌骨三维有限元模型。

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Apple is one of the most solid market performers in recent years as demand for its highly innovative products the Mac computer, iPod, iPhone and iPad continued to spiral higher every year.

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