球徑量規 的英文怎麼說
中文拼音 [qiújìngliángguī]
球徑量規
英文
ball callipers-
Verification regulation of instrument for measuring place and parallel of radial ball bering outes race
深溝球軸承套圈滾道直徑位置測量儀檢定規程Methods : to divide the anatomic area into several parts : sigmoid sinus, jugular bulb, semicircular canal, internal acoustic meats, cerebellopontine angle area, duramater. simulated the partial labyrinthectomy and endoscopic surgery on 20 adult cadaveric specimens, measured correlative data, observed correlative anatomic structure. all data analysied by sas
方法：在20例40側成人屍頭上模擬迷路后徑路橋小腦角區內鏡手術和部分迷路切除術，將相關解剖結構分為乙狀竇、頸靜脈球、半規管、內聽道、橋小腦角區、硬腦膜等幾個區域，分別觀察相關解剖結構及測量相關數據，測量結果用sas軟體進行統計學分析。This paper mainly aims at the strategic demands for large - aperture lightweight mirror proposed by high - tech development. its main research contents are : select material blank for lightweight mirror according to physical and chemical properties of optical glass ; analyze and calculate the deformation quantity of the mirror with finite element method ; design and optimize mirror body structure of 400 lightweight plane mirror and 450 lightweight spherical mirror, analyze glass cutting principle, design specisl - use grinding wheel structure, select reasonable technological parameters to implement the processing of weight reduction holes on 400 plane mirror ; analyze etching mechanism of hydrofluoric acid, look for the technological parameters such as the optimal acid concentration and etching time etc. ; eliminate the stress of weight reduction holes and micro - cracks on 400 lightweight plane mirror ; discuss the processing principle and
本論文的研究主要是瞄準國家高技術對大口徑輕型鏡的戰略需求而開展的。主要研究內容是：根據光學玻璃的物理與化學性能，選擇輕型鏡坯材料；用有限元法對鏡子的變形進行分析、計算，找出變形規律，優化設計400mm輕型平面鏡、 450mm輕型球面鏡鏡體結構；分析玻璃切削原理，設計專用磨輪結構，選擇合理工藝技術參數，完成400mm平面鏡輕量化減重孔的加工；分析氫氟酸腐蝕光學玻璃機理，尋找最佳酸濃度、腐蝕作用時間等工藝參數，實現400mm平面鏡減重孔應力與微裂紋的消除；討論分離器加工原理和工藝技術特點，完成400mm平面輕型鏡面形加工。Based on ansys, this paper studies stress concentration on single notch of eight kinds of high strength bolts used in grid structure, obtaining their stress concentration coefficients, discussing the effect of ascending angle, bottom radius of screw thread and bolt - ball on stress concentration, introducing their effect coefficients of a1, a2, a3, putting forward the formulae of stress concentration coefficient
本文以ansys有限元軟體為研究手段，針對網架螺栓球節點的8種螺栓規格進行單缺口應力集中分析，定量求得相應的應力集中系數k _ t ；論述了螺紋升角、螺紋牙根圓角半徑r及球栓直徑比d / d對k _ t的影響，並引入相應的影響系數_ 1 、 _ 2及_ 3 ，最終提出了應力集中系數k的計算公式。The surface of conventional engineering part is composed of simple analytical surfaces and four - boundary ruled surface primarily. therefore a point cloud segmentation method based on those feature surfaces is proposed. several algorithms to identify the simple analytical surface feature are investigated and discussed
常規工程零件的外表面中包含了大量的特徵曲面，如簡單解析曲面和四邊直紋面，因此，本文提出基於特徵曲面的的點雲分割方法，研究幾種識別簡單解析曲面的演算法；研究由點雲擬合b spline和b zier曲線的理論基礎，總結曲面擬合的幾種方法，提出一種反求定半徑滾球圓角的方法。Robot soccer path planning based on vector potential field
基於矢量勢場法的機器人足球路徑規劃The results showed that the traditional performance did not change by adding 2 - 3 % granularity of rare - eath and the readiation specification was in the safe scale by producing 800 - 1000 negative irons per cm3, the diameter of anti - bacterial circle to golden staphylococcus is 18 millimeter, the diameter of anti - bacterial circle to colon bacil lus is 22 millimeter, the purifying formaldehyde ratio comes to 65. 3 percent and the purifying ammonia - gas ratio comes to 52. 11 percent
結果表明：加入重量比為2 ? 3的稀土細粉后，新型環保保健塗料的常規性能指標不變；其放射性亦在安全指標范圍內，可產生800 - 1000個負離子/ cm ~ 3 ，對金黃色葡萄球菌的抑菌圈直徑為18mm ，對大腸桿菌的抑菌圈直徑為22mm ，具有較好的抑菌作用。The system is composed of inverse - fourier - transform system, optic fiber sensor and high sensitivity ccd. its software system of signal acquisition and data processing used the platform of virtual instrument labview. we tested system stability and investigated latex particle size from 32nm to 123nm, several phenomenon below have been found : ( 1 ) the experiment result is consistent with the theoretical arithmetic result of the relation between particle size and normalization light scattering energy at the position of 7 ? and 35 ? angle
組建了包括反傅立葉變換系統、光纖傳感器以及高靈敏度ccd的大角度側向光散射信號探測系統，設計了基於虛擬儀器labview平臺的信號採集和數據處理軟體，對系統穩定性和顆粒尺寸從32納米- 123納米的微乳液顆粒球進行了測試研究，發現以下現象： （ 1 ）在與光軸成7和35夾角的位置，歸一化的散射光能量與粒徑大小關系的實驗結果跟理論分析規律完全一致。分享友人