胶片孔，孔眼穿孔，凿孔的英文

perforation

• 胶片:    film; cartridge; p ...
• 孔:    hole; opening; ape ...
• 孔眼:    evelet; oillet; oy ...
• 穿孔:    bore a hole; punch ...
• 凿孔:    punching; piercer