on manholes and handholes

基本解释在人孔和手孔上的

网络释义

1)on manholes and handholes,在人孔和手孔上的2)Handhole and manhole openings,手孔和人孔开孔3)d manhole openings,手孔和人孔开口4)Manholes,and handholes,人孔,手孔5)Hand, a Second Face of Human Beings,手,人的第二面孔6)roof manway,油罐顶上的人孔

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