spark erosion machine

例句：

1. 1. The sparkerosion machine is used to remove rustfrom metal surfaces.
   火花蚀刻机用于从金属表面去除锈。
2. 2. The engineerdesigned the machine to beeasy to operate and maintain.
   工程师设计了这台机器，使其易于操作和维护。
3. 3. The spark erosion machinewas a revolutionary tool in the field ofmetalworking.
   火花蚀刻机是金属加工领域的革命性工具。