词典 / 科技
main hatch【船】
暂无补充释义。
simple main effect
arterial railway【铁路】;main railway【铁路】
main pulley
main part of root and short rhizome
main flux
main vein
main control room
main feed flap for dribble-feed control from silos for filling balances
补充或纠正词条 →