screw-thread form

例句：

1. 1. The screw-thread form of the bolt is designed to securely hold the nuts together.
   螺栓的螺纹形式设计用来将螺母牢固地连接在一起。
2. 2.The engineer used a special tool to remove the screw-thread form from the metal surface.
   工程师使用一种特殊工具从金属表面移除螺纹形式。
3. 3. The screw-thread form was crucial for ensuring the proper functioning of the machine.
   螺纹形式对于确保机器正常工作至关重要。