Geometry model of roller bit's sphere tooth, wedgy tooth and bucket shape tooth were established;

建立了牙轮钻头的球形齿、楔形齿和勺形齿三维空间的几何模型；

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Geometry model of roller bit's sphere tooth, wedgy tooth and bucket shape tooth were established;

建立了牙轮钻头的球形齿、楔形齿和勺形齿三维空间的几何模型；

youdao