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cast iron manhole cover是什么意思


中文翻译铸铁人孔盖板

网络释义

1)cast iron manhole cover,铸铁人孔盖板2)cast iron manhole cover with frame,铸铁人孔座及盖板3)cast iron flat,铸铁盖板4)cast iron cover of well,铸铁井盖板5)manway cover plate,人孔盖板6)inspection cover,检查盖;观测盖板;人孔盖