coupler neck

例句：

1. 1. The engineer used a specialtool to remove the coupling neck from thepipe.
   工程师使用特殊的工具从管道中取出连接件颈部。
2. 2. The new design of theconnector neck has improved the efficiency ofthe assembly process.
   新型连接器颈部的设计提高了装配过程的效率。
3. 3. The engineer carefully removed the couplingneck from the pipe and inspected itfor any damage.
   工程师仔细地从管道中取出连接件颈部，并检查是否有任何损坏。