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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2026年，将全力推进文昌航天发射场登月任务相关配套设施设备建设，以及测控通信、着陆场等地面支持系统各项目建设工作。
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