单词	原--初--第一级
释义	原；初；第一级；初级；原线圈primary
随便看	maintenance of structure s maintenance of structures maintenance of the canopy maintenance of track maintenance of turnout maintenance of unit maintenance of way maintenance of way vehicle maintenance operation protocol maintenance operation protocol (mop) maintenance operation protocol--mop maintenance operation protocol{=mop} maintenance operation protocol，mop maintenance operations center maintenance operations center--moc maintenance operations center，moc maintenance or administrative port maintenance order maintenance panel maintenance panel，mp maintenance parking area maintenance parts maintenance pend maintenance period maintenance personnel