It places a ceiling for the next decade on the quantity and quality of centrifuges Iran is allowed to operate and allows the country to possess only a small amount of low-enriched uranium for the next 15 years. The agreement also establishes, in US President Barack Obama’s words, a “where necessary, when necessary” inspections mechanism that has the potential to verify whether Iran is meeting these and other commitments.
这并不是说JCPOA一无是处。它给出了未来十年伊朗可以操作的离心机的数量和质量，在未来15年中，伊朗只能进行极少数低浓缩铀处理。用美国总统奥巴马的话说，该协议还建立了“必要的时间和地点”的检查机制，该机制或许能够证明伊朗是否兑现其各项承诺。