根齒 的英文怎麼說
中文拼音 [gēnchǐ]
根齒
英文
rooted tooth-
Old and bent, ashy pale and toothless, he managed with the help of two crutches, to totter into the king ' s presence
他人老背駝，面色蒼白，牙齒脫落，在兩根拐棍的幫助下，蹣跚而行，來到國王的面前。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。Results : all the five indexes ( dental attrition, contact area, the index of dentine marrow cavity, the thickness of cementum of root, the diaphaneity of dentine of root ) revealed a highly interrelated relationship with age. regression height was significant when the multiple regression equation, which was formulated with these five indexes and age and used to judge the age was statistically analyzed
結果：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、根尖牙本質透明均反映出與年齡高度相關關系，用這5個指標與年齡所建立的判別年齡的多元回歸方程經統計學分析，回歸高度顯著。The frozen coal destruction is the tension stress destroys, and establish the frozen coal cutting model in this foundation, obtains the cutting force, feeding force, tooth spacing according to the smallest energy principle. bring forward a rotary drilling mothod to unload the frozen coal, the broken ability is strong, without frozen depth limits, then obtains this machine working parameters, has combined this method with a grab and determined the plane of vehicle - carried rotary drilling movable coal - unloader
凍煤破壞是拉應力破壞，在此基礎上建立了凍煤的切削模型，根據最小能量原理得到截割力，進給力和截齒間距的計算公式，分析得到截割力與切削厚度成正比，隨著前角的增大而減小;截齒最優截距與截齒尺寸有關且與切屑厚度成正比;進給力隨著截齒前角增大而增大的規律。From this technique and the relation to an old cog wheel, the test was called a cogging test.
人們根據這一方法以及它與舊齒輪的關系把該試驗稱為「齒輪周節試驗」。From this technique and the relation to an old cog wheel, the test was called a cogging test
人們根據這一方法以及它與舊齒輪的關系把該試驗稱為「齒輪周節試驗」 。Analyse the tooth geometry of klingelnberg cyclo - palloid spiral bevel gear., according to the relative position and kinematic relation of the cutter heads, virtual crown gear and the processed wheel blank, established the system of coordinates of the gear cutting, dedcuced the tooth face equation of the virtual crown gear, according to relations of the gear cutting and space theory of engagement, deduced the tooth face equation of klingelnberg cyclo - palloid spiral bevel gear, and drawing the three - dimensional graphs of the virutal crown gear and klingelnberg cyclo - palloid spiral bevel gear according to the design and setting parameters
對克林貝格擺線齒錐齒輪進行齒面幾何分析。根據銑齒加工中刀盤、搖臺和輪坯的相對位置和相對運動關系建立了切齒嚙合坐標系，由矢量的旋轉推導了產形輪齒面方程;根據空間嚙合原理和切齒嚙合關系推導了被加工齒輪的齒面方程;由設計參數和銑齒調整參數計算得到齒面離散數據，繪制了產形輪和擺線齒錐齒輪的三維齒形。A tooth with a single cusp. cuspids have the longest root of any tooth. also known as a canine
只有一個牙尖的牙齒.任何一個尖牙都有一個較長的牙根.也稱為犬齒Thirty weeks later two - millimeter - wide molar crowns emerged, complete with pulp chambers, root tips and bonelike layers of dentin and, in a first, enamel
30周后，冒出了兩公釐寬的臼齒牙冠，具有牙髓腔、牙根的根尖、一層如骨骼般的象牙質，以及最基本的琺瑯質。In order to solve the problems of which the spiral bevel gear of oerlikon type is necessary to out and modify repeatedly, a new method was developed to predict the contact pattern and greatly reduce the cost for manufacturing by means of building a tooth contact analysis model of prolate epicycloids bevel and hypoid gears for oerlikon skm2
摘要為解決奧利康錐齒輪加工過程中需要反復試切、修正的問題，根據奧利康skm2機床建立了加工延伸外擺線齒錐齒輪和準雙曲面齒輪的齒面接觸分析模型，提出了一種可預測齒面接觸質量、降低設計加工成本的新方法。Cases of furcation that involve particular anatomical configurations, i. e., interradicular root proximity / fusion, have long been considered relative contraindications for treatments such as root amputation or hemisection
在面對根岔侵犯並加上牙根合併或緊鄰的問題時，牙根切除術或牙齒切半術，在傳統上均被視為禁忌。Proceed from the angle of enhancing the backing off grinding accuracy of the special shaped convex curved rake surface, and in accordance with the enveloping theory of differential geometry and the designing model of new configured carbide gear shaper cutters, the mathematical model for backing - off and grinding the special shaped convex curved rake surface of the new configured gear shaper cutters was derived
從提高新構形硬質合金插齒刀異形凸曲前刀面鏟磨精度的角度出發，根據微分幾何的包絡理論及新構形硬質合金插齒刀設計模型，推導出鏟磨新構形插齒刀異形凸曲前刀面的數學模型。According to the gear case ' s speed reducer original design scheme and the known design information and objective data, the decision results and the quality evaluation are given
根據某齒輪箱減速器的3種初步設計方案，藉助于已知的設計信息和客觀數據，利用該模型對其進行決策並給出了優劣順序。For the 30. 2mm shaft, there are still larger over measure to load. the strength is increased by optimization. for ? 17. 4mm shaft, the strength is increased by enlarge the inner dimension of the spline ; for 30. 2mm shaft, the strength is increased by adjust the structure at the boundary between the key groove and the ring groove, the highest stress of the shaft is at bottom and terminal of the spline after optimization
其中對17 . 4mm泵軸的優化，通過增大花鍵內徑，提高了花鍵齒底的強度，降低了應力集中點附近的應力；對30 . 2mm電機軸的優化，通過在軸承鍵的環槽端增加倒角，有效降低了該位置的應力集中，使軸的最大應力點從軸承鍵與環槽的交界處轉變到花鍵根部與收尾的交界處，提高了電機軸整體結構強度的合理性。Auto trimming / colop change / stitch change machine can be set to auto or manually trim the upper / lower thread ( under thread only for lock stitch chenille ) and change color, auto or manually change among embroidery, taping, cording, zigzag or coiling
自動換色、自動選擇刺繡方式根據花樣數據及機器設定，可進行自動或手動剪線（特種繡僅剪底線）及換色、自動或手動進行平繡、鋸齒、盤帶等不同方式的刺繡組合。The permanent incisor will assume normal position and it is not necessary to extract the mobile primary incisor if there is enough room for the permanent incisor. delayed eruption of permanent teeth
一般來說，乳齒會因為牙根收縮而變得松動，跟著自然脫落，這是正常現象，不會影響恆齒的生長，所以不一定要拔掉松動的乳齒。The thesis developed the optimization design software of geometric parameter for the worm gear including strength check module, the drawing contact lines module, the change lines of tooth thickness of worm, and the parametric modelling software for the reducer which includes parametric modelling of parts and assembly. the cad prototype system is very convenient because of its accessible interfere, simple operation and written in chinese. by input design parameters ， the cad system can make optimization design and strength check for the worm gear ， draw contact lines of tooth flank of worm - gear and change line of tooth thickness of worm ， judge if the tooth flanks of worm undercut and if the sideward tooth of worm - gear hob come to a point ， make project design and structure design for the reducer and draw its 2d parts and assembly
研究和開發了平面二次包絡環面蝸桿傳動的參數優化設計和校核軟體系統：包括幾何參數設計計算模塊，強度校核模塊，繪制齒面接觸線模塊，蝸桿齒厚變化曲線模塊和蝸桿根切判別模塊；開發了平面二次包絡環面蝸桿減速器外形與結構尺寸數據庫以及傳動效率數據庫，建立了平面二次包絡環面蝸桿傳動公差及極限偏差數據庫；開發了平面二次包絡環面蝸桿減速器參數化建模軟體：包括零部件的參數化建模模塊和裝配圖的參數化建模模塊，其中零部件的參數化建模包括蝸桿軸系的參數化建模、蝸輪軸系的參數化建模、箱體的參數化建模、端蓋的參數化建模、軸承的參數化建模和其它零部件的參數化建模軟體模塊。One tooth works while the other one idles and gets no stimulation in its root area.
一顆牙齒在工作，另一顆則閑著，它的牙根部得不到刺激。Abstract : the therortical calculation of the bending stress of the root and experimental stress analysis on the modified profile and the standard involute tooth profile were made with the finite element method and the electric resistance strain film method. this indicated that the modified profile was supe rior to the standard involute profiles in terms of the bending strength
文摘:分別用有限元和電阻應變片法對修形齒形和漸開線齒形進行齒根彎曲應力計算與實驗應力分析.結果證明在彎曲強度方面修形齒形比標準漸開線齒形更優越The undercut controlling of involut cylinder gear shaving
漸開線圓柱齒輪剃齒過程中的根切控制分享友人