But another machine in the plant, which USES a laser to scan the passing material, can sort plastic by type and colour with great accuracy.

但是工厂里的另一套设备则不一样了。其利用激光对经过的材料进行扫描，按照塑料的种类和颜色进行分类，且准确率极高。

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The underwater giant: The river, shown with a 3D scan using false colour, flows along the bed of the Black Sea.

水下巨人：使用假彩色三维扫描方法显示出，这条河流沿着黑海床流动。

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