The general aim, functional aim and the required performance of fire resistance of steel structures are introduced, which can satisfy different owners of different buildings.
该方法可充分考虑不同业主及不同建筑结构抗火设计的不同要求，同时确保火灾发生后建筑物内人员的安全及结构抗火设计的最优综合经济指标。
To the especially structure and material welding performance of a spaceflight igniter, the key welding problem is the spatter and strike fire phenomenon which is brought by high contact resistance.
针对特殊结构和材料的焊接性能，指出目前的焊接问题主要是存在飞溅和接触电阻过大而带来的“打火”现象；
5 to solve the problem of high temperature resistance and solidity, durability, fire resistance and reliable processing performance.
5解决了加固性、耐久性、抗火耐高温性能等问题加工性能可靠。
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