boring mill
柯林斯詞典
1. N a large vertical lathe having a rotating table on which work is secured. Tools are held on a fixed post and the work is rotated around it 鏜牀 (Also called (informal) roundabout)[engineering]
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1. N a large vertical lathe having a rotating table on which work is secured. Tools are held on a fixed post and the work is rotated around it 鏜牀 (Also called (informal) roundabout)[engineering]