根端直徑 的英文怎麼說

中文拼音 [gēnduānzhíjìng]
根端直徑 英文
diameter at butt end
  • 根 : Ⅰ名詞1 （植物的營養器官） root （of a plant） 2 （比喻子孫後代） descendants; posterity 3 [數學] ...
  • 端 : Ⅰ名詞1 （東西的頭） end; extremity 2 （事情的開頭） beginning 3 （門類; 方面） item; point 4 （原...
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 徑 : Ⅰ名詞1 （狹窄的道路; 小路） footpath; path; track 2 （達到目的的方法） way; means 3 （直徑的簡稱...
  • 直徑 : diameter; diam
  1. Since the discovery of cnt ’ s and find that cnts have small diameter and high length diameter ratio and can be look as one - demission material, it can be used as emission emitter of fed. especially, the aligned cnts array can be seen innumerable single cathodes which are lined regularly and form array. so growing aligned cnts array in selective area is the key technology to product cnts fed, which is also the necessary condition of cnts micro - electronics device

    自碳納米管發現以來，由於碳納米管的直徑很小、長徑比大，故可視為準一維納米材料，可作為場發射平板顯示的尖端發射體，特別是定向碳納米管陣列可看成是無數根單尖陰極規則的排列起來形成陣列式，是理想的場發射平板顯示器的尖端發射體。
  2. As both the meshing point and ball ' s center are on the given cylinder, a general method for developing the cam ' s profile is studied. it is proved that the profile of positive and negative transmission is unique if the face gear, the difference between face tooth number and ball number and the diameter of ball are the same. the concrete expression of meshing cam on given spatial cycloid profile, and the characteristics of the profiles are discussed

    論文的主要工作包括： 1 、根據嚙合點和鋼球中心軌跡均在同一圓柱面上的特點，研究了給定端齒齒廓條件下求解凸輪齒廓的一般方法；論證了在給定端齒、齒差數和鋼球直徑相同的條件下，正負齒差嚙合齒廓的唯一性；討論了端齒為球面擺線時，凸輪齒廓的具體表達式，並研究了該齒廓的性質。
  3. According to elasto - plasticity theory, with the help of finite - method program ansys, the paper undertakes the computer analogue tests about the bearing capacity of pile tip arranged by orthogonal principle, and attains the relations of pile - tip bearing capacity to embedment depth, pile diameter, cohesion, internal friction angle and modulus of deformation. by the means of mathematical statistic, regression equation of the ultimate bearing capacity calculated by finite element method is gained through the regression analysis of 81 group data from the computer analogue tests. by comparison and analysis of the values calculated by finite - element regression equation and the values of in situ loading test, the regression equation is gained which calculates the size effect for base resistance of large diameter pile

    根據彈塑性理論，運用大型有限元軟體ansys按正交設計理論對樁端承載力進行模擬計算，獲得樁端承載力與樁長（埋置深度） 、樁徑、粘聚力、內摩擦角及變形模量等主要影響因素的關系，並採用數理統計方法，對81組ansys模擬試驗結果數據進行回歸分析，得到有限元法確定樁端極限承載力的回歸公式，並將有限元法回歸公式計算值與現場小壓板載荷試驗值進行比較分析，得到大直徑樁端阻的尺寸效應系數計算公式。
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