barn
bɑ:n
基本解释
n. 谷仓
[化] 靶(恩)(核反应截面单位)
英文释义
n. an outlying farm building for storing grain or animal feed and housing farm animals
n. (physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter
词形变化
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