Fighting a losing battle to tackle growth in plastic production | Letters

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Some smoke alarms have been designed to be ultra-sensitive. Aspirating devices, for example, constantly suck in air in order to detect even small quantities of smoke in a room. They are often used in commercial settings, including server rooms packed with expensive computer tech.

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到了奉节后,詹姆斯发现,吸引他的不止是诗意山水。在这里,他既能漫步古迹,也能体验直升机观光,传统与现代交织,旅行体验丰富立体。2025年,奉节接待境外游客5.86万人次,同比增长近2倍。