ballast
重锤式张紧装置
ballast tightening device【机】;weight tension device【机】
暂无补充释义。
相关词条
Glitsch ballast valve tray
ballast
gas ballast pump
in ballast
preheating fluorescent lamp ballast without starter
ballast water tank【船】;water ballast tank【船】
ballast of fluorescent lamp