A quantity is a representation of a quantifiable (standardised) aspect (such as length, mass, and time) of a phenomenon (e.g., a star, a molecule, or a food product). Quantities are classified according to similarity in their (implicit) metrological aspect, e.g. the length of my table and the length of my chair are both classified as length.

量とは,ある現象(例: 星・分子・食品)の定量化できる(標準化された)性質(例: 長さ・質量・時間)の表現である。量は(暗黙の)計量的類似性に従って分離される。例: 机の長さ及び椅子の長さは双方とも長さに分類される。

This is just here as a test because I lose it

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