concave line 中文意思是什麼

concave line 解釋
凹線
  • concave : adj 凹的,凹面的 (opp convex)。n 凹,凹線,凹面(物)。 the (spherical) concave 〈詩〉蒼穹。v...
  • line : n 1 線;繩索;釣絲;測深度用繩,捲尺。 a fishing line 釣魚線。 be clever with rod and line 會釣魚...
  1. Our " standard " product line includes cylindrical lenses, lenses, plano - convex cylindrical lenses, plano - concave cylindrical lenses, spherical lenses, aspherical lenses, prism, filter, window, achromatic lenses and reflector etc

    我們的生產包括:柱面鏡球面鏡非球面鏡棱鏡平鏡膠合鏡透鏡反射鏡濾光片偏光鏡等。
  2. Underpart lamp stand for cover disc shape, sole concave yield, flat facial ornament runs flowers 5 times, carve and collude and connect with the cloud line in the base

    下部燈座為覆圓盤形,足底凹進,座面飾五辦花,底邊刻勾連雲紋。
  3. This paper also analyzed some key problems in 3d triangulation from scattered points. new determining principles for the relationship of point and line in space and for convexo - concave vertices of space polygon is discussed which corrected the previous method and can be applied in space triangle mesh. at the end of this papar, the future research areaes of triangluation from 3d scattered points are demonstrated

    本文還分析了三維空間直接三角剖分所要解決的一些關鍵問題,進而提出了空間中點與直線位置關系判別的新方法及空間多邊形頂點凹凸性判別的新方法,修正了以往演算法在應用上的局限性,使之能夠適用於復雜網格多邊形邊界。
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