大进刀 meaning in Chinese

roughing feed

A grinding surface is consisted of multi pillars lump . because better chips of metal wash away better during grinding process and allow more grinding fluid flow and keep the temperature low for work piece , it is suitable for larger in - feed grinding
由多片柱型块组合而成为一个研磨面，由于研磨过程排屑性较好，研磨液渗透较多，研磨工件不易发热所以适合大进刀量之研磨。