[ 复数 peens 第三人称单数 peens 现在分词 peening 过去式 peened 过去分词 peened ]
N the end of a hammer head opposite the striking face, often rounded or wedge-shaped 锤头
V to strike with the peen of a hammer or with a stream of metal shot in order to bend or shape (a sheet of metal) 锤头敲打以使(金属片)弯曲
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