cylinder saw

基本解释

And he also saw why he couldn't get the same results using steel ball bearings in a cylinder.
并且他知道为何他用铁球珠不能得出一样的试验结果。
The utility model belongs to a cutter for cutting, relating to a hole saw for processing bigger circular holes on the decorative panel, comprising a cylinder basal body;
本实用新型属于切削刀具，涉及一种用来在装饰板材上加工较大圆孔的孔锯。
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