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录像磁带性能测量方法
Measuring methods for video tape properties
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VHS盒式录像磁带
VHS video cassette tape
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音频记录PCM编解码系统
PCM encoder/decoder system for audio recording
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高保真电唱盘最低性能要求
Minimum performance requirements for high fidelity record players
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盒式磁带录音机运带机构通用规范
Generic specification for the transport mechanism of cassette tape recorders
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盒式磁带录音机运带机构可靠性要求和试验方法
Reliability requirements and testing methods for tape transport mechanism of cassette tape recorders
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