用图象表示一种图示手段，如饼状图或条形图，用于表示数量关系。

A pictorial device, such as a pie chart or bar graph, used to illustrate quantitative relationships.

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PNG表示可移植的网络图象(或，看你问谁，循环的“PNG -不是- GIF”)。

PNG stands for Portable Network Graphics (or, depending on whom you ask, the recursive "PNG-Not-GIF").

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数字，表示图象的像素高度。

Number indicating the height of the image in pixels.

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