protraction

  • 网络延长;前伸;前突
protractionprotraction

noun

1
the act of prolonging something
there was an indefinite prolongation of the peace talks
Synonym: prolongation perpetuation lengthening
2
the consequence of being lengthened in duration
Synonym: lengthiness prolongation continuation

数据来源:WordNet

  1. In the protraction movement , there was no significant difference in activities between the oral respiration group and the nasal breathing group ( P > 0.05 ) .

    前伸运动:均未见显著性差异(P>0.05);

  2. Objective : To investigate the effectiveness of the mandibular Protraction appliance in the treatment of class ⅱ malocclusion .

    目的:了解下颌前伸矫治器(MandibularProtractionAppliance,MPA)对AngleⅡ类错牙合的治疗效果。

  3. 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

  4. 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

  5. Automatization Protraction of Mine Main Fan Characteristic Curve Based on Origin

    基于Origin矿井主要通风机性能特性曲线的绘制

  6. 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。

  7. Neural net based Modeling Used in the Protraction Measurement for Thermal Expansion Die bolt

    神经网络建模在热膨胀螺栓形变测量中的应用

  8. 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。

  9. 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

  10. The experimental study of maxillary protraction through bone suture expansion in animals

    上颌骨复合体骨缝牵张的动物实验研究

  11. Further protraction of the discussion will not achieve anything .

    继续讨论下去并不能解决任何问题。

  12. Studies on the Mandibular Stress of People in the Position of Mandible Protraction

    人体下颌骨前伸后的骨应力研究

  13. Protraction of manager performance is the key factor to the long-range development of state-owned industries .

    经营者行为的长期化是国有企业长远发展的关键因素。

  14. Mandibular Protraction Appliance in the Treatment of Angle Class ⅱ Malocclusion

    下颌前伸矫治器矫治安氏Ⅱ类错合的临床研究

  15. Preparation and clinical application of mandibular protraction appliance

    下颌前方牵引器制作与应用

  16. For each patient , maxillary protraction was taken without maxillary expansion .

    每例患者均未扩弓,只采用前方牵引矫治。

  17. 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

  18. On Protraction of Manager Performance in State-Owned Industries

    论国有企业经营者行为的长期化

  19. Application skills of AutoCAD in engineering geologic protraction

    AutoCAD在工程地质制图中的一些应用技巧

  20. In main stress trace protraction , based on the character of main stress trace , propose an automatic method .

    研究了一种简便快速的主应力迹线自动化绘制方法。

  21. 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

  22. 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。

  23. Result : The profile improved slowly more than half a year in maxillary protraction treated group .

    结果:前方牵引后侧貌改善较慢,一般需半年以上。

  24. A preliminary study about the timing of maxillary protraction therapy for Angle ⅲ malocclusion

    AngleⅢ患者上颌前牵引矫治时机的初步探讨

  25. Relationship between maxillary protraction treatment and changes of nasal profile in children of Chinese Han-nationality

    汉族儿童上颌前方牵引与其鼻部侧面形态改变的关系

  26. The clinical investigation of the maxillary protraction in treatment of children Angle ⅲ anterior crossbite

    前方牵引矫治儿童安氏Ⅲ类错牙合的临床研究

  27. Treatment of maxillary retrusion using maxillary protraction combined with rapid palatal expansion in different age

    扩弓联合前牵引治疗不同年龄段的上颌发育不足

  28. Influence of simulating maxillary protraction on the position of maxilla in SD rats

    模拟上颌前牵引对SD大鼠颅面部生长发育的影响

  29. 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

  30. 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。