pinhole

US [ˈpɪnˌhoʊl]
UK [ˈpɪnˌhəʊl]
  • n.针刺的孔;针孔
  • Web小孔;销孔;针孔相机
Plural Form:pinholes  
pinhole
n.
1.
针刺的孔;针孔a very small hole, especially one made by a pin