勇士夺冠视频回放_最佳第一阵容_贝莱隆_-90vs即时比分 - 中国cba官网

Principle and characteristics of vein Technology The principle of vein recognition technology is to recognize the vein according to the characteristics of the heme in the blood that absorbs infrared light. The gray-scale image of the vein in the finger can be acquired by taking infrared photos with...