protraction

英

美

网络  前伸; 延长; 前突; 前凸; 前旋

医学

英英释义

noun

• the act of prolonging something
  1. there was an indefinite prolongation of the peace talks
  Synonym:prolongationperpetuationlengthening
• the consequence of being lengthened in duration
  Synonym:lengthinessprolongationcontinuation

双语例句

• Development of the loop-mediated isothermal amplification assay for Toxoplasma gondii Upper arch changes after maxillary protraction with rapid palatal expansion in skeletal Class ⅲ patients by anchoring to the primary teeth
  弓形虫环介导等温扩增快速检测方法的建立乳磨牙为支抗前牵引矫治后上牙弓变化的初步研究
• Biomechanical study on 3-dimensional finite element model of maxillary protraction and the palate expansion
  上颌前牵引联合腭部扩弓的三维有限元生物力学研究
• In addition, the most practical representation and protraction methods will be studied.
  同时，探索出最适合箱包设计的表现与绘制方法。
• This question of "for whom?" is fundamental; it is a question of principle. This is exactly one of the fundamental reasons why the Taiwan issue is characterized by protraction and complexity.
  为什么人的问题，是一个根本的问题，原则的问题。这正是台湾问题具有长期性、复杂性的根本原因之一。
• The software part uses c++ builder programmer to implement collection of data administrant of database protraction of valve's displacement curve simulation of valve's movement.
  软件部分采用C++Builder编程实现数据的采集、数据库的管理、阀片位移曲线绘制、阀片运动模拟。离线和在线设计，使用户不仅可以在线检测，还可以在离线状态观察阀片运动情况。
• The Research and Automatic Protraction of Flux Tendency Line Based on GIS Technology
  基于GIS的流量倾向线的自动绘制与研究
• Biomechanical study on 3-dimensional finite element model of simulated maxillary protraction after maxillary fissure repair
  模拟修复上颌骨裂隙后前牵引受力的三维有限元生物力学研究
• In the third part, we introduced the formation process of particle system, the Physically Based Modeling of particle system, the particle mechanics and the protraction of particle image.
  第三部分详细介绍了粒子系统的构造过程，粒子系统的物理模型，以及粒子运动力学和粒子图像绘制；
• Conclusion: The orthopedic force of simulating maxillary protraction promotes the remodeling of maxillary suture and TGF-β_1 may play an important role in the remodeling of maxilla.
  结论：模拟上颌前牵引矫形力促进了上颌骨缝的改建，TGF-β1在骨缝的改建中发挥了重要作用。
• Three-dimensional finite element method study on the maxillary protraction: the direction of the protraction
  前牵引上颌的三维有限元研究：前牵引方向的探讨