butt weld ends

例句：

1. 1. The butt weld ends of the pipe were damaged during installation.
   管道的焊头末端在安装时受损。
2. 2.The butt weld ends are prone to corrosion in marine environments.
   焊头末端在海洋环境中容易腐蚀。
3. 3. The butt weld ends need to be inspected regularly to ensure they are secure and functional.
   焊头末端需要定期检查，以确保它们安全且功能正常。