防伪标志 meaning in Chinese

anti-fake label
fake-proof mark; counter-forgery mark

The use of thermochromic materials in lecture demonstrations has been discussed , and thermochromic paper is available commercially . the enthalpy of the systym will also change , and the more of a h , the evidenter of the change of the colour
热变色材料不但在工业机械如炼油装置中做示温材料而且在家用取暖器、空调机等中作示温标志，也用于防伪标志等方面。
Nuclear particle track - etched anti - counterfeit marking is a new weapon against fake products . the mark is manufactured by intricate high technology in state - controlled sensitive nuclear facilities which ensures that the mark can not be copied . the pattern of the mark is characterized by its permeability , and can be distinguished from fakes by using a transparent liquid ( e . g . water ) , colored pen or chemical reagent . the technique has passed the official health safety examination and poses no danger of nuclear irradiation
用核粒子照射塑料薄膜形成径迹，再经化学试剂蚀刻和成像技术，得到由微米级微孔组成的图案.这种图案具有物质透过特性.用这种方法生产的核径迹防伪标志，具备核尖端技术不易扩散，制作设备不易得到，产品用其他方法难以伪造，防伪识别简单、快速、可靠等特点.此种标志已经通过放射性安全检测，可以用于各种商品(包括食品)的包装