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单词 凿和金属加工
例句 DEFINITIVE EXAMPLES 权威例句〔peen〕The end of a hammerhead opposite the flat striking surface, often wedge-shaped or ball-shaped and used for chipping, indenting, and metalworking.锤顶:锤头平的打击面反面通常呈楔形或半球形的顶端,用于削、凿和金属加工美国传统
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更新时间:2024/9/21 14:49:38