timber trusstimer trusswood truss木: tree桁架: truss木桁架桥: wooden truss bridge木桁: rib桁架: truss◇桁架杆 truss rod; 桁架高度 truss depth; 桁架跨度 truss span; 桁架梁 girder truss; truss beam; 桁架桥 truss bridge;桁架斜撑 batter brace; 桁架中柱 king post; crown post; 桁架柱 truss leg下载手机词典可随时随地查词查翻译