protraction
英
美
网络 前伸; 延长; 前突; 前凸; 前旋
英英释义
noun
- the act of prolonging something
- there was an indefinite prolongation of the peace talks
- the consequence of being lengthened in duration
双语例句
- 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； - 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。 - Comparison with the Effect of the Skeletal-dental and Soft Tissue Profile Changes of Maxillary Protraction with Labiolingual Appliances or Rapid Maxillary Expansion Appliances
唇舌弓式及快速扩弓式上颌前方牵引口内装置对牙颌面及软组织侧貌影响的比较 - 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 - 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。 - Objective To study the effects of ages on combined RME and maxillary protraction therapy.
目的研究年龄对于前方牵引联合快速扩弓矫治效果的影响。 - 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 - Design and Protraction for Oil Well Structure Drawing Based on Visual Basic
基于vb的油井结构图设计与绘制 - Conclusion vertical control was good in jaw bone and was not effective in dentition when applying maxillary protraction combined with rapid expansion.
结论联合上颌前方牵引及快速扩大方法对颌骨垂直向控制较好，但对牙齿垂直向控制较差。 - Establishment of an experimental animal model of maxillary protraction and cephalometric analysis
上颌前牵引动物模型建立与头影测量分析