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Today, when you recycle a plastic container, it goes to a material recovery facility, where it must be identified and sorted. 现在回收塑料瓶时会送到材料回收设施那里，必须要进行识别和分类。 Facilities typically rely on imprecise older technology to try to figure out materials in a particular piece of waste. Workers standing next to conveyor belts as packages whiz by can catch others. 回收设施通常依靠不精确的旧技术试着找出一块废料中的可回收材料。包裹在传送带上飞速而过，工人站在旁边抓住。 But by embedding a microscopic change in a pattern of pixels—called an invisible bar code—on the label, software can instantly identify the package so it can be sorted and recycled correctly. 但通过对商标的像素模式进行轻微改动，也被称为隐形条码，软件就能立刻识别出这个包裹，准确进行分类回收。 Several of the world’s largest brands, including PepsiCo, Nestle, and P&G, have spent the last two years collaborating with Digimarc, the company that developed the technology. 在过去两年，百事可乐、雀巢和宝洁等全球大品牌与开发这种技术的Digimarc公司进行了合作。 Working with recyclers, retailers, and recycling machine manufacturers to test the system, the project aims to target one of the reasons that many plastic packages end up in landfills. | 
