trepanning meaning in English
穿孔试验
切取岩样
套孔
套料切削
挖深切削
Examples
- Trepan - formed perforator
圆钻形穿孔器 - Dermal trepanning forceps
皮打眼钳 - In view of cost , practicability and maneuverability , the special sintering diamond trepanning drill was developed for drilling ceramic composite components originally
根据复合构件加工中的各种缺陷，分析了采用预压应力钻削对改善表面加工质量的重要性。 - Accoding to experiment , found that trepanning can obtain the holes of little taper , high roundness , using laser drilling of nearby the last energy threshold gained the holes of high quality
最终得出:在工件上打大孔径的孔时,采用旋切打孔的方法可以得到了圆度高、锥度小的孔质量。 - Methods : clinical data of 32 cases of patients with complicated posterior urethral stricture treated by the trepanning appliance and the 21 cases by common operation were retrospectively reviewed
方法：在对32例复杂性后尿道狭窄患者行开放性手术中，使用后尿道钻孔器钻孔（钻孔器组） ，并与21例常规后尿道钻孔的疗效进行对比。