切削齿 meaning in English

cogging
cutting teeth
cutting tooth

Polycrystalline diamond compact bit ( pdc bit ) is one of facilities in the drilling of petroleum and natural gas , and its capability , especially the rationality of the placing of cutting is very important to the speed and cost of drilling
Pdc钻头是油气钻井的重要工具，该钻头对地层的敏感性强，结构变化多、设计灵活，其性能(尤其是切削齿的布置合理性)对钻井速度和成本影响很大。