第四十条 从事原子能研究、开发和利用活动的单位，应当遵守国家有关辐射防护的规定，保护公众和从业人员的安全与健康，保护生态环境。
Use your own reasoning. Don't stop even if the formula is too large just try to solve it manually.
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Publication date: 28 February 2026。服务器推荐对此有专业解读