穿孔(鼓膜)

perforated plate

perforated block (cored block, hole block)

watering arrangement with perforated pipe-line located above the soil

Duodenorrhpahy, suture of perforated ulcer

PPU(Perforated petic ulcer)

posterior perforated substance,

paper, non-perforated

multiorifice plate【化工】;perforated plate【化工】