Unlike previous ones, the e-passports contain biometric data embedded in a radio-frequency identification (RFID) chip, along with the usual mugshot and optical bar-code.
In the study of optical properties of low class crystal system, the identification of optic sign has important meaning to unknown crystal and mineral determination.
在低级晶族光学特性的研究中,光性符号的确定对未知晶体及矿物的鉴定有着重要的意义。
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It is through radio signals to identify a specific target, read and write the corresponding data, without mechanical or optical contact with the identification system.