• Step-back technique; Curving root canal; root canal preparation; root canal condensation.

    逐步后退弯曲预备充填

    www.39kf.com

  • Conclusion it is better apical sealing ability in root canals prepared by crown-down technique than step-back technique.

    结论短期内冠预备技术逐步后退技术成形的有利于管充填后根尖密封

    dict.cnki.net

  • The technique of back EMF induction in BLDC motor is analyzed, the "virtual neutral point" method and the technique of "3-step" start are introduced.

    主要分析电动势感应方法阐述了虚拟中点法三段式起动技术

    dj.iciba.com

  • A kind of new forming technique to manufacture the back spring seat was proposed, called drawing-multi-step sinking with the cylindrical-forming process.

    提出生产工艺方法:拉深—多步缩成形

    www.chemyq.com

  • A kind of new forming technique to manufacture the back spring seat was proposed, called drawing-multi-step sinking with the cylindrical-forming process.

    提出生产工艺方法:拉深—多步缩成形

    www.chemyq.com

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