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消防警报装置
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消防警报装置
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fire alarm indicating device
消防警报装置
在火灾发生时,能够向报警区域发出声光火灾警报信号,以警示现场人员采取安全措施和灭火救援措施的装置。又称火灾警报装置、声光讯响器、声光警报器、消防警铃、火灾警铃、火灾声警报器。
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history of Carangidae fishing in China
history of carp culture in China
history of carp fishing in China
history of cartography
history of cattle raising
history of cattle raising in ancient China
history of celestial body
history of ceramics
history of Changjiang river water conservancy
history of chemical fibre industry
history of chemical fibre production
history of chemistry
History of Chen Dynasty
history of childhood
history of China inland river shipping
history of China textile standard
history of China’s forestry economics
history of Chinese ancient books
history of Chinese ancient printing
history of Chinese aviation
History of Chinese Bibliography
history of Chinese bibliography
history of Chinese bibliography science
History of Chinese Book Industry
History of Chinese Books and Libraries
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