英语词汇“pennsylvania truss”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pennsylvania truss
释义	Pennsylvania truss Pennsylvania truss [¦pen·səl¦vā·nyə ′trəs] (civil engineering) A truss characterized by subdivided panels, curved top chords on through trusses, and curved bottom chords on deck spans; used on long bridge spans.
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Pennsylvania truss