单词	铁系材料
释义	铁系材料ferrous material
随便看	navigation channel navigation channel chart navigation chart navigation clock navigation coal navigation communication satellite navigation computer navigation computer control navigation computer control，ncc navigation computer--nc navigation computer unit navigation computer unit，ncu navigation computer，nc navigation constant navigation consultant navigation control simulator navigation control simulator，ncs navigation coordinate navigation countermeasures navigation countermeasures {= navcm} navigation data assimilation computer navigation data assimilation computer--nadac navigation data assimilation computer，nadac navigation-- dead reckoning navigation; dead reckoning