1.  swing bridge
2.  turn bridge

• 1. 旋桥: swing bridge | turn bridge
• 2. 双螺旋桥: Helix Bridge | Double Helix Bridge
• 3. 竖旋桥: bascule bridge | weigh bridge | leaf bridge | bascule bridge west bank

更多释义

• 1.驱动桥有两种旋向，可依用户需求供货。
  The axle has two kinds of steering to meet the needs of different different users.
  dict.yoduao.com

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