protraction中文什么意思

n.
1.拖延；伸长，延长。
2.制图。

• dose protraction:    长时间低照射量,剂量延长分割
• extraoral protraction:    口外前牵引
• mandibular protraction:    下颌前伸运动,下颌前伸

例句与用法

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1. ( 3 ) in main stress trace protraction , based on the character of main stress trace , propose an automatic method
   ( 3 )研究了一种简便快速的主应力迹线自动化绘制方法。
2. I complete the hardware work on the card , including design of the whole card , fpga interface program and evaluation of all of the registers of pci9030 , protraction of schematic and pcb of the card , debugging the hardware part of the card
   在具体实现时,采用了pci总线接口? pci处理板卡与主机协同处理的方法?本卡由我独立完成本卡的硬件整体构思
3. After maxillary protraction and mandibular retraction with occipito - mental anchorage ( oma ) appliance on first stage , the patient was successfully treated with fixed orthodontic appliance with modified multiple loop edgewise archwire ( meaw ) and asymmetric elastics
   本病例报告为一12岁女孩，主诉下颚前突及偏斜，经第一阶段以功能性颚骨矫正将上颚拉出及抑制下颚骨生长；第二阶段使用全口固定式矫正装置，以改良式meaw在3 ~ 4个月内改善齿列正中线，以及修正偏斜的下颚。
4. From the introduction of the structure and characteristic of dcs , the analyzing in process and control peculiarity of huaxin type cement kiln and the analyzing in the ordinary forms of computer control system in the cement plant , to determine the feasibility of application of the dcs in computer control system of huaxin type cement kiln ; introduced the structure of the system hardware , constitutes and characteristic of the industrial network , the characteristic and the performance in industrial control system of the software system ; illuminated the whole course of the design and the application of simatic s7 - 300 programmable controller in the industrial producing process profoundly : the protraction of a control flowchart ; the confirmation of the control scheme in every cell ; how to workout a table of the all controlling and measuring dots in the control system ; how to set up a plc control project ; the configuration of the hardware and the network in project ; illuminated the course of how to program the plc control program in detail ; how to establish a connection between the plc and the programmer ; how to download the configuration and the program of the plc project ; the configuration of control center software simatic wincc ; the whole course and the methods of the control system debugging ; illuminated the essential in the course of the design in project and program ; illuminated the problem and its respondence maybe encountered in the project ; illuminated the superiority of the new control system in inspecting , operating and its stability ; discuss the development of the computer control system in the application of the huaxin type cement kiln
   从介绍了dcs的结构、特点和分析华新型水泥窑的工艺控制特点及当今在水泥窑计算机控制系统上采用的几种常见形式的比较出发，分析了在华新型水泥窑应用dcs的可行性；详细介绍了系统硬件结构、网络组成及特点、所采用的软件体系的特点及其在工业控制应用中的性能；深入详细地说明了西门子s7 - 300可编程序控制器在华新型水泥窑控制上应用及设计的全过程：控制流程图的绘制；单元控制方案的确定；系统控制测点表的编制； plc控制项目的建立；项目硬件及网络的组态； plc控制程序的编制过程并详细说明了控制程序的编制思路； plc与编程器连接的建立； plc项目组态及控制程序的下载； wincc监控软件的组态；控制系统的调试过程及方法；对设计和使用的要点及系统调试时应注意的问题进行了说明；对项目的实施后的华新型水泥窑控制系统在操作和控制上及其在系统易维护性、系统稳定性上的优势进行了说明并讨论了华新型水泥窑计算机控制系统的发展方向。
5. The article is directed by the modern structural geology , seismic stratigraphy and petroleum geology . in the study of works , geology , seismic and logging data are used . with the computer ' s ( workstation ) help , adopted many methods which are the technology of balanced section , calculation of the structural movement rate , the renewal of the erosion thickness , renewal of the ancient thickness , the protraction of the cover history curve and the " pagoda " figure , and based on the previous research achievement , this article studies the characteristic of rupture and fold , the degree of structural movement and the fashion of structural movement and brings forward that ludong area has experienced three big phases of structural evolvement
   以现代构造地质学、地震地层学和石油地质学为指导，全面利用各种地质、物探、测井资料，借助先进的计算机(工作站) ，采用多种方法(平衡剖面技术、构造活动速率计算、剥蚀厚度恢复、古厚度恢复、埋藏史曲线制作、宝塔图制作等) ，并结合前人的研究成果，研究了陆东地区断裂和褶皱的特征、构造运动的期次以及构造运动的方式，提出了陆东地区经历了三个大的构造演化阶段。

英文释义

名词

1. the act of prolonging something; "there was an indefinite prolongation of the peace talks"
   同义词：prolongation, perpetuation, lengthening
2. the consequence of being lengthened in duration
   同义词：lengthiness, prolongation, continuation

百科释义

Protraction is the anatomical term of motion for anterior movement of an anatomical part of the body forward (anteriorly). This can include the shoulders, jaw, pelvis, etc.