元宝螺钉
词语: 元宝螺钉
解释: butterfly screw
词典: 纺织专业汉英词典
元宝螺钉 相关解释
butterfly screw 〔名词〕蝶形螺钉
butterfly screw 蝶形螺钉蝶形螺母,元宝螺母
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