• A fire alarm automatic system was introduced, it was developed with smoke sensor and telephone.

    介绍一种火灾自动报警系统。该系统应用了离子感烟传感器和电话。

    youdao

  • Smoke extraction fan is set as manual and automatic start.

    排烟风机设置为手动和AUTO开启装置。

    youdao

  • Smoke extraction fan is set as manual and automatic start.

    排烟风机设置为手动和AUTO开启装置。

    youdao

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