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扩底直径
meaning in Chinese
bellout diameter
Related Words
辗扩
扩口
扩引
扩声
扩孔工具
扩口系数
压扩增益
扩眼钻头
向上扩眼
扩房群
扩底基础
扩底挖斗
扩底桩
扩底桩 扩脚桩
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