[] () the use of measurements of human features or characteristics, such as fingers, eyes or voices, in order to identify people生物测量学，生物识别技术（指使用人类特征进行身份鉴定的技术，例如利用手指、眼睛或声音特征验证身份）◆experiments in using biometrics to identify and charge shoppers 利用生物识别技术对购物者进行识别和收费的实验