| 单词 | perforation gauge |
| 释义 | perforation gauge in British Englishnoun a graduated scale for measuring perforations and roulettes of postage stamps perforation gauge in American Englishnoun Philately a marked ruler used to measure the number of perforations per unit length along the borders of a stamp Word origin [1890–95]This word is first recorded in the period 1890–95. Other words that entered Englishat around the same time include: cholesterol, historicism, plein-air, pogey, takedown |
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