“steel portal frame”的概念、定义、翻译、参考文献-科学参考

单词	steel portal frame
释义	steel portal frame Encyclopedia 工学建筑钢结构体系释 steel portal frame门式钢刚架结构上部主结构由刚架斜梁和刚架柱通过刚性连接或半刚性连接构成的呈“门”字型的结构体系。是一种传统的结构体系。经历了近百年的发展，已成为一种设计、制作与施工标准相对完善的结构体系（见图）。
随便看	air-suction seed-metering device air supply module air supply of instrumentation and control air supply of launcher air supply respirator air supply vehicle air surveillance radar air system and water system air table air tape sampler air temperature control air texturing air texturing yarn machine air thrawing equipment air tightness of high speed train air tight test airtight transportation air-to-air heat exchanger air-to-air missile air-to-air missile flight phase air-to-air missile warhead air to fuel ratio air to ground missile Air to ship missile air toxics

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