metal-impregnated graphite brush

例句：

1. 1.This metal-impregnated graphite brush is ideal for cleaning delicate electronic components.
   这种金属浸渍石墨刷子非常适合清洁精密电子元件。
2. 2. The engineer used a metal-impregnated graphite brush to remove rust from the old car's engine.
   工程师使用金属浸渍石墨刷子去除旧车引擎上的锈。
3. 3. The technician was tasked with cleaning the metal-impregnated graphite brushes before the assembly line began.
   技术员被指派在装配线开始前清洗金属浸渍石墨刷子。