Chinese translation for "人孔口"

manhole opening

Similar Words：

"人孔环" Chinese translation, "人孔加强环板" Chinese translation, "人孔加强圈" Chinese translation, "人孔井" Chinese translation, "人孔颈口" Chinese translation, "人孔拦栅" Chinese translation, "人孔类型" Chinese translation, "人孔里盖" Chinese translation, "人孔门" Chinese translation, "人孔门通煤孔手孔" Chinese translation