Technically, the PSM is a special type of Maker Vault with:
• 100% Collateralization Ratio — That is why the 1 Dai, 1 stablecoin rate.
• 0% Stability Fee — Users do not have to pay a Stability Fee because they are not asking for a Dai loan against their crypto.
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从技术上讲，PSM 是一种特殊类型的 Maker Vault，具有：
• 100% 的抵押率——这就是 1 Dai，1 稳定币利率的原因。
• 0% 的稳定费——用户无需支付稳定费，因为他们没有针对他们的加密货币申请 Dai 贷款。
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