电竞竞猜app哪个好

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塑料瓶隐形防伪的原理原来是这样的

2019-01-14 16:27

塑料瓶防伪技术中,有一种采用了“变色”颜料。这些添加剂含有多层聚合光反射涂层,涂布在一片能反光的铝芯片周围,使塑料的颜色随着观察角度不同而发生变化。颜色的变化,比如由红变绿,乃是因为从不同颜料层反射出来的光波受角度的干扰所致。变色颜料使塑料瓶电竞竞猜app哪个好产生显著的美学效果,且因为这些效果不易被克隆,所以还具有防伪功能。  


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