Aiming at the lateral dislocation between the electromagnets and the rails on a horizontal curve,we investigated a singl......

How Far Can You See?　　If you stood on the shore looking across the sea to the horizon(地平线 the line appearing to sep......

A reconfigurable flexible poles die was developed.The die can be used to implement the process of “the multi-point pres......

A novel ellipsoidal helical antenna is proposed and studied in this letter. As a special in-stance,the hemispherical hel......

该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......

目的 探讨多层螺旋CT对阑尾炎的诊断价值.方法 搜集手术和病理证实为阑尾炎者40例的临床资料,回顾性分析比较螺旋CT轴扫和多平面重......