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annular bit
词语: annular bit
解释: 环形钻头
词性: 名词
词典: 建筑专业英汉词典
annular bit 相关解释
annular bit 圆形钻
annular bit 〔名词〕环孔锥,环状钻头
环形钻头 annular borer
环形钻头 annular bit;annulated bit
环形钻头 annular bit