three-centred arch

This paper presents a plan of fhe structure, which is compound Larg-span structures of Γ farme parabolical three hinged arch space-truss.

本文介绍的结构方案是：Γ型柱抛物线三铰拱空间桁架组合大跨结构，按固体力学力学分析的方法，导出了杆件的内力计算公式。

METHODS: Three-dimensional face bow was designed to measure the projection of zygoma, the eyes, and width of the face. Then it was used for 5 patients with comminuted or delayed zygomatic and arch fractures to evaluate the clinical effects.

方法：设计并制作可用于测量颧骨突度、面侧方宽度以及眼球突度的三维定位面弓，用于颧骨颧弓粉碎性骨折和陈旧性颧骨骨折共5例，评价其临床应用效果。

This papaer presents a new structure, which is compound large span structures of Γ frame parabolical three hinged arch space truss.

提出一种新型屋架结构&Γ型柱抛物线三铰拱空间桁架组合大跨结构，导出了该结构有关的设计计算公式。

This paper introduces a diagram method for three-hinged arch influential line of monents and completely proves it.

介绍了三铰拱弯矩影响线的一种图解方法，并给出了证明。

Three typical aerodynamic flow field found in double-arch flame furnaces are experimentally studied by means of the Thring Newby modelling method.

本实验利用Thring-Newby模化方法对三种典型的W型火焰锅炉炉膛的空气动力场进行了分析研究。