Also, the basal representation and recognition framework of 2-d objects are built in virtue of the flexible representation of skeletons.

论文还利用骨架这种柔性的目标表示，构建了基础的二维目标表示和识别框架。

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While Hubble pictures of celestial objects are awe-inspiring, they are flat 2-d photographs.

哈勃拍的天体照片让人惊叹，但它们是二维的。

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Researchers at North Carolina State University have managed to create a surprisingly simple method for converting 2-d patterns into 3-d printed objects.

北卡州立大学的研究员打算发明一种神奇而又简单的方法来使2d图案变3d。

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