McDonald's said the new standards will reduce fossil-fuel based plastic in its toys by 90 percent.

麦当劳表示，新标准将使其玩具中的化石燃料塑料减少90%。

In most plants, the separation is done using human sorters but, in newer plants, there are infrared sensors that identify the plastics based on the spectrum of light they reflect.

大多数工厂均通过人工分拣，但在新型工厂会用红外线分类器，它通过塑料反射出的光进行分拣。