barn
英 [bɑ?n]
美[bɑrn]
- n. 谷倉；畜棚；車庫；靶（核反應(yīng)截面單位）
- vt. 把…貯存入倉
英英釋意
- 1. an outlying farm building for storing grain or animal feed and housing farm animals
- 2. (physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter