May circle the system in the vacuum tubularresistance furnace body installment by the multi-layered copper pipe the horizontal field winding, must let water through cooling.
可在真空管式电阻炉体安装由多层铜管绕制的横磁线圈，需通水冷却。
2
In this paper, in order to get the fire resistance of integral structures with two different materials, concrete-filled steel tubular framed structures and the pure steel structures are analyzed.
本文为了得到火灾中不同材料结构的整体耐火性能，分别研究了钢管混凝土和纯钢材两种整体结构。
3
The calculating results illustrate that the load acting on a concrete-filled steel tubular column has a great influence on the fire resistance time and fire protection thickness.