A laser burns away the grime of 18 centuries, caked onto the Arch of Septimus Severus in the forum.

激光将广场上18世纪的塞普帝穆斯·西弗勒斯拱门上的污迹一扫而空。

It uses computer vision and artificial intelligence to identify target and then laser burn weeds in between the baby lettuce shoots.

它利用计算机视觉和人工智能来识别目标，然后用激光在生菜幼芽之间焚烧杂草。