Read Edit View history 保长对应 bǎochángduìyìng isometry Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 保长对应/保長對應 · bǎochángduìyìng · isometry 2026/03/04 保长对应 / 保長對應 bǎochángduìyìng isometry distance-preserving correspondence or mapping between two metric spaces 在欧几里得几何中，旋转和平移都是保长对应。 created sense Mar 4, 2026, 02:25 AM