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自动喷水灭火系统 zìdòng pēnshuǐ mièhuǒ xìtǒng
exhib. sprinkler system
hydroel.st. automatic sprinkler system
nautic., tech. automatic fire-extinguishing sprinkler system; automatic sprinkler fire extinguishing system; automatic sprinkling system
tech. motor-sprinkler system
自 动喷水灭火系统: 3 phrases in 1 subject
Technology3