metal feeder

例句：

1. 1. The metal feederis used to transport liquids through thepipeline.
   金属输送器用于通过管道输送液体。
2. 2. The metal feeder was designed toprevent leaks in the pipeline.
   金属输送器设计用来防止管道泄漏。
3. 3. The metalfeeder was installed at the end ofthe pipeline to ensure efficient flow.
   金属输送器安装在管道末端，以确保高效流动。