main switchboard
主机系泊试验
main engine bollard test【水运】
暂无补充释义。
相关词条
main vein
main control room
main feed flap for dribble-feed control from silos for filling balances
Aconite Main Tuber and Halloysite Pill
travel of main slide【机】
gas main
main hook approach to crane rail top【机】