bolted spherical node

例句：

1. 1. The engineer used a bolt spherical node to fix the roof.
   工程师用一个螺栓球形节点固定了屋顶。
2. 2. The scientist discovered a new type of bolt spherical node that could be used in space exploration.
   科学家发现了一种新型的螺栓球形节点，可以在太空探索中使用。
3. 3. The engineer explained how the bolt spherical node was used to connect two pieces of equipment together.
   工程师解释了如何使用螺栓球形节点将两件设备连接在一起。