[JY 25-1979] 三相感应电动机模型技术条件(试行)[已作废]
发布时间:2002-05-01
实施时间:2002-05-01
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[JY 165-1984] 耳解剖放大模型技术条件(试行)[已作废]
发布时间:2001-06-01
实施时间:2001-06-01
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发布时间:2001-06-01
实施时间:2001-06-01
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发布时间:2001-06-01
实施时间:2001-06-01
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发布时间:2001-06-01
实施时间:2001-06-01
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[JY 169-1984] 离心轨道[已作废]
发布时间:2001-06-01
实施时间:2001-06-01
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发布时间:2001-06-01
实施时间:2001-06-01
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发布时间:2001-06-01
实施时间:2001-06-01
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发布时间:2001-06-01
实施时间:2001-06-01
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发布时间:2001-06-01
实施时间:2001-06-01
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[JY 174-1984] 托里拆利实验演示器(试行)[现行]
发布时间:2001-06-01
实施时间:2001-06-01
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[JY 175-1984] 阿基米德定律演示器(试行)[现行]
发布时间:2001-06-01
实施时间:2001-06-01
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发布时间:2001-06-01
实施时间:2001-06-01
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[JY 177-1984] 机械能热能互变演示器(试行)[现行]
发布时间:2001-06-01
实施时间:2001-06-01
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发布时间:2001-06-01
实施时间:2001-06-01
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[JY 18-1979] 学生电源技术条件(试行)[已作废]
发布时间:2001-06-01
实施时间:2001-06-01
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发布时间:2001-06-01
实施时间:2001-06-01
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[SN/T 0869-2000] 进出口饮料中维生素C的测定方法[已作废]
发布时间:2000-06-22
实施时间:2000-11-01
本标准规定了出口饮料中维生素C(抗坏血酸)含量的荧光光度测定方法本标准适用于出口饮料中维生素C(抗坏..
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[JY 1-1978] 演示用大型电表技术条件(试行)[已作废]
发布时间:1996-06-01
实施时间:1996-06-01
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[JY 10-1978] 高频信号发生器技术条件(试行)[已作废]
发布时间:1996-06-01
实施时间:1996-06-01
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