inch screw thread

例句：

1. 1. The screw thread on the bolt is too tight to be tightened further.
   螺栓上的螺丝螺纹太紧，无法再拧紧。
2. 2. The engineer used a special tool to remove the inch screw thread from the machine.
   工程师使用特殊工具从机器中移除了英寸螺丝螺纹。
3. 3. The screw thread was so fine that it could not be seen with the naked eye.
   螺丝螺纹非常细，肉眼无法看见。