長寬比Aspect Ratio)是二維圖形的最長和最短的兩個跨度的比例。也可能是:

  • 影像長寬比Aspect Ratio),電影和電視等影像的長寬比
  • 展弦比Aspect Ratio),飛機或鳥類翼展與翼弦長之比
  • 旗幟縱橫比Aspect Ratio),國旗的高度與寬度之比
  • 屏幕寬高比英語Display aspect ratioDisplay Aspect Ratio),顯示器的高寬比率
  • 像素長寬比Pixel Aspect Ratio),數位影像像素的寬高比率

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