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Meaning of 齿孔

Lookup via: Pinyin | Radicals
齿 chǐ kǒng (Trad.: 齒孔)
perforations (on a postage stamp)
Example Sentences
1
齿
He has an obsession with postage stamps.
2
齿
The rear perforations are visible on the cut edge.
3
齿线
You can separate the stamps along the perforated line.
4
齿
Grooves extend to the finished edge, but rear perforations are not visible.
5
齿
齿
Advanced feed hole: Refer to sprocket holes of paper tape, which are in line with the leading edge of the code holes.