一看：用肉眼观察标识表面的激光开天窗安全线，安全线开天窗部分有“●ZX”字样；

First observe: observe the laser blank safety line. There is a mark “●ZX” at the blank part of safety line;

二揭：用手揭开标识，双色分层纸会从中分离，揭启面为白色，遗留面为淡绿色；

Second unveil: unveil the label with your hands, the double-color delaminatable paper will separate, the unveiled side is white and the remaining side light green;

三照：用荧光灯照射标识表面，可以清晰地看见红、蓝两色荧光纤维；

Third irradiate: irradiate the label surface with a fluorescent lamp, you can see red and blue fluorescent fibers clearly;

四查：用电话、手机短信、互联网等方式输入标识上的防伪数码进行查验。

Fourth check: input the anti-counterfeiting code on the label via telephone, handset short message and Internet etc. for checking and verification.