Gates's own experience, the posterior lobe of the 20th century post-industrial era, technology and culture into a symbol.
盖茨本人的经历，成为20世纪后叶后工业时代技术文化走向的一种象征。
Objective: Comparing of clinic using of prefabricated screw and cast metal post-and-core of posterior tooth.
目的：比较后牙成品螺纹桩核与铸造桩核的临床应用比较。
For evaluation of post spinal surgery patients, physicians usually order the anterior-posterior and lateral projection spinal radiography after the surgery.
对于接受脊椎重建术、甫出开刀房的病人，医师通常会要求照脊椎的正面与侧面照，以作为术后评估之用途。
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