The width-to-height ratio of the active area of a display. Standard U. S. video has an aspect ratio of 4:3.
有效面积的宽度对高度的比率展示。 标准美国录像有4︰3的高宽比。
NOTE: The aspect ratio of the picture is defined to be the ratio of the picture width W to its height H.
注意：图像的屏幕高宽比定义为图像的宽W和它的高H的比值。
A font stretch describes the degree to which a font form is stretched from its normal aspect ratio, which is the original width to height ratio specified for the glyphs in the font.
字体拉伸描述字体形状从其普通纵横比拉伸的程度，普通纵横比是为字体中的标志符号指定的宽度与高度的原始比例。
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