For the use of fire alarm system, fire detector alarm unit testing and installation of construction engineering units during the installation and acceptance of the tools is necessary.

为各使用火灾报警系统的单位测试火灾探测器报警功能及安装施工工程单位安装验收过程中必备之工具。

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For the use of fire alarm system, fire detector alarm unit testing and installation of construction engineering units during the installation and acceptance of the tools is necessary.

为各使用火灾报警系统的单位测试火灾探测器报警功能及安装施工工程单位安装验收过程中必备之工具。

youdao