最終更新日：2024/07/28

A folding magnifying glass which, when unfolded, forms a frame for the lens at a pre-focussed distance. Commonly used in stamp collecting.

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linen tester

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元となった辞書の項目

linen tester

noun

I use a linen tester to examine the fine details of fabrics.

意味（1）

意味（2）

A small magnifying glass, as might be used to check the thread count of linens.