Concept information
优选词，正式主题词
0112/2///62720#UAA320Acre
定义
- The acre is a unit of area in a number of different systems, including the imperial and U.S. customary systems. Its international symbol is ac. The most commonly used acres today are the international acre and, in the United States, the survey acre. The most common use of the acre is to measure tracts of land. One international acre is equal to 4046.8564224 square metres.
上位概念
URI
https://vocab.sentier.dev/units/unit/AC
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