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深山中的贵州龙里县，从修通产业路到规模化种植，从种苗繁育到开展深加工，政策持续发力，产业逐步升级，刺梨成为托稳果农增收的支柱产业。
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.