消水栓脚动报警按钮除旌旗灯号线中，借需求启背鲐问线至泵房。

Fire hydrant manual warning button besides holding wire, but also needs to open the pump reply line to the pump house.

youdao

消水栓脚动报警按钮除旌旗灯号线中，借需求启背鲐问线至泵房。

Fire hydrant manual warning button besides holding wire, but also needs to open the pump reply line to the pump house.

youdao