GY T 57-1989 Method of checking technical indices for ZCG Type vertical testing cabinets《ZCG型测试立柜技术指标检测方法》.pdf

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GY 34-1984 转播用调幅广播收音机运行技术指标等级.pdf

GY 35-1984 VHF电视发射通道运行技术指标测量方法（双通道部份）.pdf

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GY 79-1989 农村有线广播用户设备技术指标测量方法.pdf

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LY T 1556-2000 公益林与商品林分类技术指标.pdf

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