有些广告经营者非常热衷于数字指纹技术。
数字指纹技术是数字版权保护的有效措施。
Fingerprinting digital material is an effective means of protecting copyrighted material and digital rights management.
数字指纹技术是一种用来辨认非法拷贝，追踪非授权用户的新技术。
Digital fingerprinting is a technique for identifying unauthorized copy and tracing back to its user.
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