• truss vierendeel truss 空腹桁架，弗伦第尔桁架 arch truss 拱形桁架 truss element 桁架单元；桁架杆元 steel roof truss 钢屋架

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laurin, laurine, laurinol, laurinoxylon, laurionite, laurisilva, laurisilvae, laurite, Laurocerasus, laurolactam,

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3G, 401(K), a,