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

• Objective To evaluate the treatment effect and stability of maxillary protraction and rapid palatal expansion in the permanent dentition.
  目的研究联合应用上颌前方牵引与快速扩弓对恒牙早期Ⅲ类骨性错牙合的矫治效果及稳定性。
• 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。
• 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
• To investigate the therapeutic effects of maxillary expansion and protraction in the primary dentition.
  探讨在乳牙期利用固定扩弓矫治器前牵引的临床效果。
• Results The new anchorage implants were stable almost in every protraction experimental study.
  结果在所有实验中支抗种植体稳定性良好。
• 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
• Sagittal airway dimensions following maxillary protraction in 30 cases
  前方牵引器治疗对上气道影响30例观察
• 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；
• 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
• 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。