inverted counterbore
... inverted counterbore 倒置柱坑钻 head counterbore 油缸头部埋头孔 counterbore n 埋头孔 ...
基于12个网页-相关网页
... 杆端锻粗机 upsetting machine 倒置柱坑钻 upside-down counter-bore 上游 upstream ...
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