first ply 中文意思是什麼
first ply
解釋
第一層簾布-
A concept of step - by - step round angle surface for transition and its mathematic modeling was put forward first time. different fiber placement patterns ( 0, 90and 45 ply ) and their simulation module were designed. a simulation system for fp - - - - - - simjoint system for satellite triangle conjunction was composted, which include mandrel modeling, fiber placement trace in mandrel simulation and robot ' s kinematics simulation
詳盡描述了構架式衛星接頭的幾何建模過程，針對所研究對象的特點，提出了用於變截面曲面之間過渡的漸進圓角過渡曲面的概念，並建立了相應的數學模型；針對構架式衛星接頭設計了90 、 0和45等不同角度對應的纖維路徑和鋪絲線型模擬模塊。 -
When 0 ? ply is included and lay on the surface in a laminate, the ultimate strength is the highest ; if a laminate does not possess both 0 ? ply and 90 ply, then it shows relatively large first - ply failure strength, but the ultimate strength is much smaller than that of laminates including 0 ply
拉伸試驗和有限元數值分析表明：若板內含有0 ?層，且該層位於板的表層時，則最終強度最大；若板內既無0 ?層，又無90 ?層，則初始層破壞強度較大，而最終強度遠小於含有0 ?層板的最終強度。 -
First of all, the paper expounds vr technology, vr technical application actuality and the trend of development on network, then based on each client demands and contrasting manifold relation techniques, adopts three - ply browser / server architecture, and constructs long - distance simulation training system of scanning probe microscope based on virtual reality and web
本文首先闡述了虛擬現實（ virtualreality ， vr ）技術，以及網路虛擬現實技術應用現狀和發展趨勢，然後根據客戶需求及他們擁有的計算機環境，對比多種相關技術，提出了採用三層瀏覽器服務器（ browser server簡稱b s ）體系結構，架構遠程基於虛擬現實技術的掃描探針顯微鏡模擬培訓系統。 -
First the ply orientation angle of the structure is optimized ; second the ply thickness is optimized
本文的優化設計方法分為兩步：第一，對結構的鋪層角度進行優化，第二，對結構的鋪層厚度進行優化。 -
This paper first analyses the developing direction of cad system in the era of internet, and discusses several key technologies of web - based remote design system, including network technique, three - ply architecture based on b / s, asp technique and the method to call remote program using activex components which is based on the theory of com / dcom
本文首先分析了internet時代cad系統的發展方向，研究了基於web的cad遠程設計中的主要理論和關鍵技術，包括網路技術、基於browser server的三層體系結構、 asp開發技術以及利用以com dcom原理為基礎的activex組件實現遠程程序調用的方法。
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