• 1. expanding mandrel: 胀开式心轴 | 涨开心轴 | 胀开心轴 | 胀缩心轴
• 2. air operated expanding mandrel: 气动胀开心轴
• 3. automatic expanding mandrel: 自动胀开心轴

更多释义

• 1.The installation tool maintains sleeve position in the hole while pulling the mandrel into, and expanding the sleeve until the mandrel breaks off at a predetermined point.
  安装工具将套筒定位在孔内，同时向往外拉心轴，套筒受力膨胀，心轴在预定受力点被拉断。
  dict.yoduao.com

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