“long-span steel framing”的概念、定义、翻译、参考文献-科学参考

单词	long-span steel framing
释义	long-span steel framing [`lȯŋ ´span `stēl `frām·iŋ] ^{BUILDING CONSTRUCTION} Framing system used when there is a greater clear distance between supports than can be spanned with rolled beams; girders, simple trusses, arches, rigid frames, and cantilever suspension spans are used in this system.
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