duplicaten.副本adj.完全一样的；复制的v.复制；重复duplicate recoiler双位卷取机duplicated spoiler双段扰流板duplicate projects重复布点duplicate specimen重复试样duplicate-busbar双母线duplicate activity重复活动duplicated segment重复节段duplicate of draft[经] 汇票副本duplicate a letter复写信件duplicate pendulum复摆

1. The pull rod is screwed into the inside thread of the anchor head.
   将拉杆旋入锚头内的丝扣。
2. Large span double box-beam rod structure is born out of BSS.
   大跨度双箱梁钢棒拉杆组合钢结构即脱胎于张弦梁结构。