ballast
平碴器
ballast leveling device
暂无补充释义。
相关词条
Glitsch ballast valve tray
ballast
gas ballast pump
ballast of fluorescent lamp
ballast mat【铁路】
ballast tank
draining the ballast for tracks, for road sub-base
ballast leveling device
暂无补充释义。
ballast
Glitsch ballast valve tray
ballast
gas ballast pump
ballast of fluorescent lamp
ballast mat【铁路】
ballast tank
draining the ballast for tracks, for road sub-base