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数字分量演播室的同步基准信号
Synchronizing reference signals for the component digital studio
价格：￥0.00
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VHF电视发射通道运行测试方法(双通道部分)
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有线电视模拟电视信号加解扰系统入网技术要求和测量方法
Specifications and methods of measurement on scramble/descramble systerm used for analog TV signal in CATV systems
价格：￥0.00
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有线电视系统用无源混合器(5~1000MHz)入网技术条件和测量方法
Specification and methods of measurement on Combiners(5~1000MHz) used for CATV systems
价格：￥0.00
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有线电视系统接收机变换器入网技术条件和测量方法
Specification and methods of measurement on set top convertor used in CATV systems
价格：￥0.00
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