到现在为止，几乎所有的环签名体制都基于传统密码体制。
Till now almost all the ring signature scheme is based on the traditional cryptosystem.
像所有的链条一样，冷藏链是其最脆弱的一环。
Like any chain, a cold chain is only as strong as its weakest link.
现如今在供应链上的每一环都依赖于其他所有的。
Nowadays each link in the supply chain depends on all the others.
现如今在供应链上的每一环都依赖于其他所有的。
Nowadays each link in the supply chain depends on all the others.
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