If installed on a fire sprinkler system, all mechanical checks, such as alarm checks and backflow preventers, should be flow tested and inspected internally in accordance with NFPA 13 and NFPA 25.

如果安装在防火喷淋系统上，所有机械式止回阀，如警告止回阀和防回流阀，都应该根据美国国家消防协会NFPA 13和NFPA 25标准进行流量测试和内部检查。

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The spray nozzle layout scheme of fire sprinkler system with building structure beam was discussed through practical project example, and suggestion for structural design modulus was also put forward.

本文通过工程实例探讨了建筑结构梁对消防喷淋系统中喷头的布置方案，并对结构设计模数提出了建议。

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Newlyweds who learn to forgive aren’t putting out a fire; they’re installing a sprinkler system.

那些学习如何原谅的新人们并非从不发火，他们正在为彼此安装消防系统。

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"I heard after a while on the public address system that a fire had occurred inside the tunnel and the sprinkler system was going to be activated, " he told Jiji Press.

BBC: Japan Sasago tunnel: Collapse traps cars

The hotel had no sprinkler system fitted and Mr Hughes said he was concerned hotels could still carry out their own fire risk assessments.

BBC: Penhallow fire victims' relative wants safety changes