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厅堂扩声特性测量方法
Methods of measurement for the characteristics of sound reinforcement in auditoria
价格：￥0.00
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Ku频段卫星电视地球接收站通用规范
General specification for Ku-band satellite television earth receive-only station
价格：￥0.00
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30MHz～1GHz 声音和电视信号电缆分配系统抗扰度测量方法和限制
Measurements and limits of immunity of cabled distribution systems primarily intended for sound and television signals operating between 30MHz and 1GHz
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30MHz--1GHz 声音和电视信号的电缆分配系统辐射测量方法和限值
Measurments and limits of radiation of cabled distribution systems primarily intended for sound and television signals operating between 30MHz and 1GHz
价格：￥0.00
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音频组合设备通用规范
General specification for audio combination equipment
价格：￥0.00
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NICAM-728卫星电视信道副载波传送数字声技术规范
Technical specification for NICAM-728 digital audio signal transmission with satellite TV channel subcarrrier
价格：￥0.00
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电视调谐接收器高保真声输出最低性能要求
价格：￥0.00
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视听系统设备互连用连接器的应用
Application of connectors for the interconnection of equipment in audio-visual systems
价格：￥0.00
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语言学习系统通用技术条件
General specification for language learning systems
价格：￥0.00
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