ca图使用白表示0，黑表示1。

CA diagrams use white to represent 0 and black to represent 1.

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图7：白盒场景序列图实例。

Figure 7: White box scenario sequence diagram example.

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在传真技术中，具有一系列处在图象黑电平与白电平之间色调的图象。

In facsimile, a picture having a range of toneslying between picture black and picture white.

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在传真技术中，具有一系列处在图象黑电平与白电平之间色调的图象。

In facsimile, a picture having a range of toneslying between picture black and picture white.

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