... trussed construction 桁架结构 trussed joist 桁架托梁 trussed partition 桁架隔墙 ...
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... 桁架纵梁 trussed stringer 桁架式梁 bracedbeam 桁架托梁 trussed joist ; tru ed joist ...
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短语
钢桁架托梁
Steel Trimmer Truss Beam
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