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减小外径的钻铤
meaning in English
turned-down drill collar
Related Words
钻铤
减小重量
规模减小
减小量
附着力减小
减小亮度
减小坡度
减小转速
倾角减小
体积减小
减小缩进
减小推杆力
减小选择集
减小压力
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