identification number

基本解释

All you have to do is hold the little plastic card to the windscreen as you approach the checkpoint, and a scanner reads your unique identification number.
你所要做的，只是在抵达检查站时把小塑料卡拿到玻璃橱窗前，而扫描仪会读出你唯一的身份证号码。
In 2006, it ordered all Chinese Internet game manufacturers to install technology in their games that demands players reveal their real name and identification number.
2006年，政府下令所有的中国网游开发商在游戏中采取技术手段，让玩家出示真实姓名以及身份证号码。
Much like your personal identification number (PIN), your password is your secret; if you choose your password well, it's likely difficult for others to guess it at random.
与您的个人识别号码 (PIN) 相同，您的密码也是保密的，如果您选择了合适的密码，那么其他的人将很难猜到它。

This system involves high-tech license plates which constantly transmit a vehicle's unique identification number.
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