approximate diameter 中文意思是什麼
approximate diameter
解釋
近似直經- approximate : vt 1 使接近。2 接近；走近。3 近似，約計。4 模擬。5 估計。vi 近於。 His income this year approxima...
- diameter : n. 1. 直徑。2. （顯微鏡等的）放大倍數。
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Standard practice for approximate determination of current density of large - diameter ion beams for sputter depth profiling of solid surfaces
固體表面濺射深度仿形加工用大直徑離子束的電流密度近似測定的標準規程 -
Abstract : based on the basic concept of the revolving shell, the equation of the middle surface generatrix of the approximate ellipsoid portion of the ellipsoidal head is derived, the unwrapped area and the unwrapped diameter of the ellipsoidal head are calculated, the result is compared with that of derived from the real ellipsoid and that of calculated from the empirical equation, relative chart and code are given out, which could be used by manufactures for reference
文摘:根據回轉殼體的基本概念，推導了橢圓封頭的近似橢圓殼部分的中面母線方程，據此推導計算了橢圓封頭的展開面積及展開圓直徑，並根據橢圓殼幾何形狀推導的結果與經驗公式所得結果進行了比較，給出了有關圖表及計算程序，可供製造單位參考使用。 -
When the diameter of the particles satisfied some conditions, mie theory is approximate to fraunhofer diffraction theory
當顆粒粒徑滿足一定條件時，米氏光散射可以用夫瑯和費衍射來近似。 -
It discusses the influence factors of pile groups effect, such as pile space, pile number, pile diameter, pile length and soil parameter etc. subsequently, using linear interpolation function to approximate the soil ' s anti force to piles, the article combines p - y curves with pole system fem. in this way, a new pile - soil interaction element calculated model is designed, the pile - soil interaction element stiffness matrix is deduced, and establishes finite element equation of p - y model, writes the relevant finite element program with matlab language, calculates and analyses pile groups subjected to lateral loads with engineering examples
隨后，本文將p - y曲線法與桿系有限元法相結合，採用線性插值函數來逼近土對樁的約束反力，得到新的樁?土相互作用的單元計算模型，推導了樁?土相互作用的單元剛度矩陣，建立了p - y模型的有限元求解方程，用matlab語言編制了相應的p - y曲線有限元法計算程序，進行橫向承載樁的計算分析。
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