protraction 中文意思是什麼

( 3 ) in main stress trace protraction, based on the character of main stress trace, propose an automatic method

（ 3 ）研究了一種簡便快速的主應力跡線自動化繪制方法。

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

在具體實現時，採用了pci總線介面? pci處理板卡與主機協同處理的方法?本卡由我獨立完成本卡的硬體整體構思

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

本病例報告為一12歲女孩，主訴下顎前突及偏斜，經第一階段以功能性顎骨矯正將上顎拉出及抑制下顎骨生長；第二階段使用全口固定式矯正裝置，以改良式meaw在3 ~ 4個月內改善齒列正中線，以及修正偏斜的下顎。

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

從介紹了dcs的結構、特點和分析華新型水泥窯的工藝控制特點及當今在水泥窯計算機控制系統上採用的幾種常見形式的比較出發，分析了在華新型水泥窯應用dcs的可行性；詳細介紹了系統硬體結構、網路組成及特點、所採用的軟體體系的特點及其在工業控制應用中的性能；深入詳細地說明了西門子s7 - 300可編程序控制器在華新型水泥窯控制上應用及設計的全過程：控制流程圖的繪制；單元控制方案的確定；系統控制測點表的編制； plc控制項目的建立；項目硬體及網路的組態； plc控製程序的編制過程並詳細說明了控製程序的編制思路； plc與編程器連接的建立； plc項目組態及控製程序的下載； wincc監控軟體的組態；控制系統的調試過程及方法；對設計和使用的要點及系統調試時應注意的問題進行了說明；對項目的實施后的華新型水泥窯控制系統在操作和控制上及其在系統易維護性、系統穩定性上的優勢進行了說明並討論了華新型水泥窯計算機控制系統的發展方向。

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

以現代構造地質學、地震地層學和石油地質學為指導，全面利用各種地質、物探、測井資料，藉助先進的計算機（工作站） ，採用多種方法（平衡剖面技術、構造活動速率計算、剝蝕厚度恢復、古厚度恢復、埋藏史曲線製作、寶塔圖製作等） ，並結合前人的研究成果，研究了陸東地區斷裂和褶皺的特徵、構造運動的期次以及構造運動的方式，提出了陸東地區經歷了三個大的構造演化階段。

This system provides photo elastic, moire, holographic, speckle technology contained in optical measure strain and displacement analysis software interface, and mainly realizes photo elastic image collection, interference image pretreatment, automatic skeleton extract method, automatic main strain trace protraction method and planar photo elastic image strain analysis function. all the work that the author has done has established a good foundation for more realization of an intact optical measure image strain analysis software system. furthermore, engineer and lab assistant can quickly obtain concise, intuitionistic and quantificational information

該系統提供了光測力學所包括的光彈法、雲紋法、全息法以及電子散斑法等技術應力和位移分析軟體實現的介面，主要實現了等差線圖像和等傾線圖像的採集、干涉條紋圖像預處理、全自動提取光彈條紋圖像骨架線、全自動繪制主應力跡線以及二維光彈應力分析功能，為進一步開發完整的光測力學圖像應力分析軟體奠定了基礎，同時使工程技術人員以及實驗人員能夠迅速的獲取簡明、直觀、定量的信息。

The natural factors of the ground subsidence include crustal movement, geological structure, geology, physiognomy, and hydrology, etc. the human factor includes excessive exploitations of fluid resources, such as groundwater, etc. in the sixth part, the collection and management of data, the establishment and management of the database, and the protraction and usage of related maps in the research of ground subsidence were introduced and discussed

地面沉降影響因素包括地殼運動、地質構造、地貌、氣候和水文等自然因素，以及過量開采地下水等人為因素。第六部分從數據的收集、整理、數據庫的建立和管理及有關圖件的繪制及應用等方面對gis在地面沉降研究應用作了介紹和探討。