【机械工程】穿孔金属片（穿孔金属片）【建筑】屋顶覆盖用的打孔的板材

perforated plate

perforated ( eardrum )

perforated hardboard【木】

watering arrangement with perforated pipe-line located above the soil

Duodenorrhpahy, suture of perforated ulcer

PPU(Perforated petic ulcer)

posterior perforated substance,

perforated nickel ribbon【电】