English Dictionary

perforation gauge

名詞

(philately) A device for measuring the number of perforations per 2 centimetre distance along the edge of a postage stamp.

日本語の意味

切手の縁にある穴あき（パーフォレーション）の数を、2センチメートルごとに測定するための器具。

Using a perforation gauge, she confirmed that the vintage stamp had twelve perforations per two centimetres along its edge.

切手の縁の2センチ当たりの穿孔数を測る器具を使って、彼女はその古い切手に2センチ当たり12個の穿孔があることを確認した。

意味（1）

(philately) A device for measuring the number of perforations per 2 centimetre distance along the edge of a postage stamp.

The perforation-gauge is surrounded by a neat border, and inscription indicating the price — one shilling — and the publisher's address.

perforation gauges （ plural ）