发布时间:2004-07-15
实施时间:2004-07-15
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发布时间:2004-07-15
实施时间:2004-07-15
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[JY 4-1978] 学生示波器技术条件(试行)[已作废]
发布时间:2004-07-15
实施时间:2004-07-15
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[JY 52-1980] 分子结构模型技术条件(试行)[现行]
发布时间:2004-07-15
实施时间:2004-07-15
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发布时间:2004-07-15
实施时间:2004-07-15
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[JY 54-1980] 光学演示箱技术条件(试行)[现行]
发布时间:2004-07-15
实施时间:2004-07-15
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[JY 55-1980] 体积单位演示器技术条件(试行)[现行]
发布时间:2004-07-15
实施时间:2004-07-15
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发布时间:2004-07-15
实施时间:2004-07-15
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发布时间:2004-07-15
实施时间:2004-07-15
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[JY 6-1978] 晶体管图示仪技术条件(试行)[已作废]
发布时间:2004-07-15
实施时间:2004-07-15
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发布时间:2004-07-15
实施时间:2004-07-15
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[JY 65-1981] DNA结构模型技术条件(试行)[现行]
发布时间:2004-07-15
实施时间:2004-07-15
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[JY 66-1981] 蛋白质二级结构模型技术条件(试行)[现行]
发布时间:2004-07-15
实施时间:2004-07-15
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[JY 7-1985] 教学用电子仪器的质量检验规则及试验方法[已作废]
发布时间:2004-07-15
实施时间:2004-07-15
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[JY 8-1978] 教学用电子仪器的标志、说明书、包装、运输和保管(试行)[已作废]
发布时间:2004-07-15
实施时间:2004-07-15
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[JY 9-1978] 低频信号发生器技术条件(试行)[已作废]
发布时间:2004-07-15
实施时间:2004-07-15
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发布时间:2002-11-26
实施时间:2003-05-26
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[JY 2-1978] 演示用大型电表技术条件(试行)[已作废]
发布时间:2002-05-01
实施时间:2002-05-01
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[JY 22-1979] 小型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 24-1979] 三相电机原理演示器技术条件(试行)[已作废]
发布时间:2002-05-01
实施时间:2002-05-01
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