文档介绍：actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under据现场情况楼道共需要安装20个吸顶广播点；共需设计20只GM-513吸顶音箱只须接到3W接口即可满足楼道的背景音乐及铃声，最后实际功率
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adhere to the
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adhere to the
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adhere to the
75W左右。
校园区设计：校园区有3个室外广播点需要覆盖广播，平时会有一些背景音乐及广播要播出，在校园区设计3只GM-418,40/60W豪华型全天候防雨音柱，这样是可以满足整个音质效果，最后实际功率120W。
风雨操场区设计：是一个200米标准操场，平时会有一些广播体操，运动会在这举行，根据现场操场面积大小设计，在