锐缘孔 锐缘孔口

sharp-edgedorifice  detail>>

锐缘孔口

sharp-edged orifice  detail>>

锐缘孔

sharp-edged orifice  detail>>

方缘孔口

square edged orifice square-edged orifice  detail>>

圆缘孔口

rounded orifice  detail>>

缘孔

marginal pore  detail>>

锐缘

sharp edges  detail>>

边缘孔

drive holes edge hole end hole  detail>>

后缘孔

trailing-edge hole  detail>>

内缘孔

basal aperture  detail>>

凸缘孔

flanged hole  detail>>

缘孔纹

pit border  detail>>

锐缘的

sharp edged  detail>>

锐缘堰

sharp-crested weir weir， sharcrested  detail>>

锐缘蜱

argasid ticks  detail>>

弯锐缘

sharbend  detail>>

边缘孔卡片

margin-punched card  detail>>

绝缘孔眼

insulated eye  detail>>