ballast shoulder cleaning machine

例句：

1. 1. This machine is designed to cleanthe ballast shoulder of a power transformer.
   这台机器设计用来清洗变压器的避雷器肩部。
2. 2. The maintenance technicianused this machine to remove the dirt fromthe ballast shoulder.
   维护技术人员使用这台机器来清除避雷器肩部的污垢。
3. 3. The ballast shoulder cleaning machine wasan essential tool for maintaining electrical equipment.
   避雷器肩部清洁机是维护电气设备必不可少的工具。