切割削
cutting
以上为机器翻译结果，长、整句建议使用 人工翻译 。
而切割，削砍和钻孔同属本类别。
Cutting, chopping, and drilling are included in this category.
youdao
方形兜孔钢保持架因为钢架硬度高、拉削难度大等特点，始终采用线切割加工方兜孔。
The working for square pockets of turning steel cages having high hardness and difficult to broach is conducted in linear cutting.
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