J-10B战机的垂尾顶部边缘呈现弧形，与J-10垂尾的平直形状对比鲜明。

The upper edge of J-10B’s tailfin is curved, in contrast to the straight-edged tailfin of the J-10.

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这样的类型可能包括添加一个对比物(颜色对比，形状对比，纹理对比等)，或者移除某一个重复的物件。

Broken repetition might include adding a contrasting object (color, shape, texture) or removing one of the repeating objects.

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还有一种不同形状的巧妙对比。

There is also an artful contrast of shapes.

《柯林斯英汉双解大词典》