di primary 中文意思是什麼
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Fi nite e1ement and finite difference are two primary methods used in the so1 ut ion process of di fferentia1 equat i on
水動力模型採用二維淺水風生流模型，有限元方法和有限差分方法是求解偏微分方程的兩種主要方法。 -
This paper mainly analysis the function of dc power supply distribution chest and introduce the design of overall project, at the same time analysis the design of electric properties insulation properties 、 di - electric strength as well as the design of primary part
摘要本文主要分析了直流配電箱的功能，介紹了總體設計，同時對導電性能、絕緣電阻、抗電強度和其中主要零件結構設計等進行了分析。 -
1mage processing is primary work in di sp1aying system, several c1assic interpolation a1gori thms are di scussed, then the resu1t of image interpo1at ion by reverse - - di stance power a1gori thm is offered here
圖像處理是系統顯示部分的主要工作之一。本文討論了幾種經典的圖像插值演算法，並給出了應用逆距離加權插值方法對網格數據進行插值的結果。
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