Conference signal creator is a core module in telephone conference.
会议信号产生器是电话会议的核心部件。
Load module through fire warning holding wire fire-alarm and fault signal newspaper to controller.
输进模块经过火警报警旌旗灯号线将火灾及毛病旌旗灯号报至节制器。
Load module through fire warning holding wire fire-alarm and fault signal newspaper to controller.
输进模块经过火警报警旌旗灯号线将火灾及毛病旌旗灯号报至节制器。
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