齒密度 的英文怎麼說
中文拼音 [chǐmìdù]
齒密度
英文
tooth density-
Methods : we have divided the 636 molars ( without dental caries or pathological changes of root ) collected in school of forensic medicine and stomatological hospital in shanxi medicine university into four groups : maxl, max2, manl, man2, and selected 5 indexes closely related to changes of dental age ( dental attrition, contact area, the index of dentine marrow cavity, the thickness of cementum of root, the diaphaneity of dentine of root ), and proposed the grading standard and scoring standard date processing and statistical analysis after measuring the teeth of the four groups
方法：從山西醫科大學法醫學院及口腔醫院收集的636磨牙（無齲壞、無根尖病變）分為max1 、 max2 、 man1 、 man2四組，根據牙齒的增齡變化特點，篩選了5個與牙齡變化密切相關的指標（牙齒的磨耗、接觸區面積、牙本質髓室指數、根尖牙骨質的厚度、根尖牙本質透明） ，提出了指標的分級標準和評分標準，對各組的牙齒測量后進行數據處理和統計分析。Carry close market survey, in machine of decelerate of ceaseless and perfect combined - type solid products tastes quality while, the company is affirmatory with modular machine of decelerate of planet of gear case of machine of decelerate of hard tooth flank, large burden, high strenth and wind - force generate electricity gear case is core product, replace in order to import develop way for you, insist to specialization, homebred the way that the high - quality goods that turn makes
通過嚴密的市場調研，在不斷完善組合式減速機實物產品質量的同時，公司確定以模塊化硬齒面減速機、大型重載齒輪箱、高強度行星減速機和風力發電齒輪箱為核心產品，以進口替代為發展方向，堅持走專業化、國產化的精品製造之路。Finally, with the help of the program written in asp language, the 3d model of denture, added up with of the human faces, was compounded to provide the preview, in the ways of both fixed and motion pictures. [ results ] 3d digital model of human natural teeth and the corresponding rpd components were successfully developed. with the data base governing the 3d digital model files set up, the program of application written in asp languages was compiled and tested to run without errors, completing the initial foundation of 3d - preview system for clinical and educational practice in prosthodontics
平臺開發是利用三維編輯軟體3dsmax製作了正常天然牙列和口腔修復學中整鑄可摘局部義齒的各組成部件、精密附著體及其他的一些相關三維模型，建立了基於sql - server的數據庫管理系統，以供方便地調用各種三維模型，合成牙列和修復義齒三維模型，再引入人頭模型引擎，通過三維模型製作多角度平面渲染圖或四川大學碩士學位論文三維動畫，作為素材上傳數據庫供二級用戶調用。Precision gear shaping machines - testing of the accuracy
精密插齒機精度Such bone - density loss can speed the progression of any existing gum disease
這種骨密度的丟失會加速任何已經存在的齒齦疾病。Analysis for magnetic field of srm is very complicated since the flux waveforms in different parts of the motor vary with motor phase, stator pole and rotor number, also with the winding connections, etc, which results in the srm losses, especially iron loss calculation difficult. the temperature analysis due to the losses has become a study hot spot
Sr電機鐵心的磁通波形不僅與電機的相數有關，還與定、轉子齒極數、定子繞組連接方式等密切相關，從而使得sr電機磁場分析很復雜，復雜的磁通密度波形導致電機損耗特別是鐵損的計算非常困難。電機的損耗又會引起電機的溫升，因此高性能的sr電機的熱分析也成為目前的研究熱點。The setting of mesh and gear changing are done by electronic part instead of previous manual operation
緯線密度的設置和更換齒輪都由以前的人工操作改進為電子自動控制。Technical supporting : new materials including high strength and high wear resistance carbides, carbides and diamond multi materials, manufacturing technologies including complicated shapes, precision press, cam etc
技術支撐：新材料技術，特別高強度高韌性高耐磨合金，硬質合金/金剛石復合材料；產品製造技術，主要是復雜形狀齒（片）的、精密成型技術，牙輪鉆集成製造技術。In this thesis, the basic aspects about forming process and mould for cold precision rotary forging of common bevel gear are studied with method of theory and experiment. the rules and numerical relations of dimensional precision relaying among common bevel gear part, die cavity and tool electrode are established. meanwhile, the design and calculation methods for process parameters, mould, common bevel gear forging and preform and tool electrode are established
本論文對傘齒輪冷擺輾精密成形工藝的若干問題進行了系統的理論和實驗研究，深入分析了傘齒輪冷擺輾精密成形工藝的物理力學本質，確定了傘齒輪產品零件?模具?電極之間的幾何尺寸精度傳遞規律和數值關系，建立了冷擺輾精密成形工藝參數和模具、傘齒輪鍛件和預制坯、工具電極的設計計算方法。Abstract : the application of index technology of precise terminal gear, the product developed by itself and the direction of technical development are introduced in this paper
文摘:介紹國內精密端齒分度技術的應用、自行開發的產品及技術發展的方向。Transmission error and the return difference are the most important precision index in the precision gearing system and their influence on servo system is also the most important, so their accurate calculation is a necessary work
傳動誤差和傳動回差是精密齒輪傳動裝置中最重要的精度指標，對伺服系統的影響也是諸因素中最大的，所以對其進行較準確的計算是一項必不可少的任務。The design of precision gearing system should satisfy not only the design of requirement general precision machinery but also the precision and property requirement of the servo system. therefore we must analyze the influence of these structural factors
精密齒輪傳動裝置不僅要滿足一般精密機械的設計要求，而且要滿足伺服系統的精度和性能要求，因此必須對這些結構因素的影響進行分析。Secondly, this article studies the static working state of the labyrinth seals in steady flow, including the cavity the relative thickness between gear the proportion of cavity depth to cavity width various gears the level angle of gear the influences of helical gear angle and it ' s flowing direction
2 、研究迷宮密封在定常流動下的靜態工作特性，其中主要包括空腔數、齒間相對厚度、間隙與空腔寬度之比、空腔深寬之比、不同齒形、齒面傾斜角、斜齒傾角和流向等的影響。It is well known that the gear contact ratio has a close relation with the gears transmission error, contact pattern, load distribution, influences the gears meshing smooth, noise, dynamic strength and stiffness. based on development of the meshing theory, using tca, ltca and experiments, spiral bevel gears with high contact ratio are researched systematically
眾所周知，齒輪的重合度與齒輪傳動誤差、接觸印痕與載荷分配密切相關，進而影響到齒輪嚙合的平穩性、噪聲、動剛度與動強度等。This thesis emphasizes on the mechanics feature of the spatial cam sliding tooth transmission, and the corresponding numerical computing software is developed. all of these offer a feasible method and prompt tool for the intensity design of the new precision transmission
本文著重對空間凸輪活齒傳動的力學特性進行研究，並開發相應的數值計算軟體，從而為該新型精密傳動的強度設計提供有效的方法和快捷的工具。A multi - tooth accurate graduation device with no - lifting table
工作臺不抬起式多齒精密分度臺Network test shows that the flow line distribution are continuous and dense, so it is considered to be the reason that forged gears have higher strength and longer life
網格試驗顯示，塑性加工的螺旋傘齒輪金屬纖維連續而緻密，揭示了塑性加工齒輪強度高和使用壽命長的原因。So as a new precision transmission device, it is provided with widely application prospects in many industry fields such as robot industry, machine industry, instrument industry, etc. the project originates from the national " 863 " plan, named " the research and application on new spatial cycloid - ball gearing " ( no. 2001aa423190 )
新型空間凸輪活齒傳動具有傳動精度高、嚙合間隙可調、自鎖性能好等優點，因此作為一種新型的精密傳動裝置，在機器人、機床、儀器儀表等工業領域有著廣泛的應用前景。本課題來源於國家「 863 」計劃「新型空間凸輪活齒精密傳動及其應用研究」 （課題編號： 2001aa423190 ） ，有關該新型傳動設計理論與方法的研究是該課題的重要組成部分。分享友人