DNA packaging DNA包装
viral DNA packaging 病毒DNA装壳
packaging dna
dna包装
以上为机器翻译结果，长、整句建议使用 人工翻译 。
"The beauty of this system is that we do not need to modify the item being protected in any way with tags, chips or ink - it is as if documents and packaging had their own unique DNA, " said Professor Cowburn.
BBC: NEWS | Technology | Laser spots paper 'fingerprints'
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