position pin

例句：

1. 1. The engineer used a position pin to mark the location of the screw on the circuit board.
   工程师使用定位销在电路板上标记螺丝的位置。
2. 2. The carpenter inserted the position pin into the wood to ensure it was securely fastened.
   木匠将定位销插入木头中，确保它被牢固地固定住。
3. 3. The tool uses a position pin to align the parts together during assembly.
   该工具使用定位销来在装配过程中对部件进行对齐。