For example, some scientists have suggested using giant lasers on top of mountains to basically break apart harmful chemicals before they reach the stratosphere.

例如，有的科学家就建议在有害化学物质到达平流层之前，使用山顶上的巨型激光束从根本上将它们分离。

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The UK division of food giant Kellogg's has developed a hi-tech method to stamp out imitation cereals by burning their famous logo onto individual flakes using lasers, the Daily Telegraph reported.

据《每日电讯报》报道，食品巨头家乐士的英国分公司日前开发了一种高科技技术，能够使用激光在每个玉米片上打上公司标识，以便与仿冒品区分开。

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The harpoon is clearly aimed at capturing the larger objects but many other solutions have been proposed, including the use of lasers to nudge space junk out of the way, or using giant nets and space tugs.

CNN: Space harpoon plan to nail orbital garbage