由于动物以不同的速度生长着，这儿的有些牛身上还有清晰可辨的肋骨架，“他们还要再养一段时间。” 他说。

As the animals develop at different rates, some of the cows here still have well-defined rib cages, "They've got a bit further to go. " he says.

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因为动物们以不同的速度生长着，所以在有些牛身上还能看到清晰可辨的肋骨架：“他们还要再养一段时间。”他说。

As the animals develop at different rates, some of the cows here still have well-defined rib cages: "They've got a bit further to go, have those," he says.

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方法首先设计了一种基于位编码和坐标变换的快速3D细化算法来提高提取器官骨架的运算速度；

Method A 3D thinning algorithm based on bit encoding and coordinates transform was designed to speed up the calculation of extracting the skeleton.

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