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声系统设备 第7部分:头戴耳机和耳机测量方法
Sound system equipment.Part 7:Methods of measurement on headphones and earphones
价格:¥0.00
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头戴耳机通用规范
General specification for headphones
价格:¥0.00
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具有自动增益控制电路的助听器电声特性的测量方法
价格:¥0.00
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具有感应拾音线圈输入的助听器电声特性的测量方法
价格:¥0.00
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半导体集成电路 运算放大器系列和品种
Semiconductor integrated circuits. Series and products of operational amplifier
价格:¥0.00
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无线传声器系统通用规范
General specification for wireless microphone systems
价格:¥0.00
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直流放大器特性和测试方法
Direct current amplifiers-Characteristics and test methods
价格:¥0.00
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高保真声频放大器最低性能要求
Minimum performance requirements for high fidelity audio amplifiers
价格:¥0.00
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