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目前,在国内提取指纹最常用的“502”显现指纹技术,是由北京警官陈建华首创的,他同时还攻克了国际上公认的其他难题。
At present, the most commonly used “502” fingerprinting technology for fingerprinting in the Mainland is first pioneered by Beijing police officer Chen Jianhua, and he also tackles other internationally recognized problems.