当地时间3月4日，国际原子能机构发布声明称，根据对最新可用卫星图像的分析，机构认为伊朗境内含有核材料的设施没有受损，目前不存在放射性物质泄漏风险。在伊斯法罕核设施附近，两栋建筑受损。
There are two main types of smoke alarm tech, says Raman Chagger, principal consultant at BRE, the Building Research Establishment. Ionisation-based systems use a tiny amount of radioactive material to charge, or ionise, particles in the air which flow between two small plates. Should smoke interrupt that flow of charged particles, the alarm goes off.
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numerals so that we can write down the levels for each one. A pattern