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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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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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发布时间：2004-07-15
实施时间：2004-07-15
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[JY 62-1980] 圆面积演示器、圆柱体积演示器、圆柱圆锥体积[现行]
发布时间：2004-07-15
实施时间：2004-07-15
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发布时间：2004-05-01
实施时间：2004-05-01
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发布时间：2004-01-09
实施时间：2004-01-09
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[JY 0027-1993] 教学仪器产品图样和技术文件未注公差尺寸的极限偏差[现行]
发布时间：2004-01-09
实施时间：2004-01-09
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发布时间：2004-01-09
实施时间：2004-01-09
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发布时间：2004-01-09
实施时间：2004-01-09
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发布时间：2004-01-09
实施时间：2004-01-09
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发布时间：2004-01-09
实施时间：2004-01-09
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发布时间：2004-01-09
实施时间：2004-01-09
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[JY 0009-1990] 教学用电子仪器的环境要求和实验方法[已作废]
发布时间：2004-01-09
实施时间：2004-01-09
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[JY 0011-1990] 教学用单踪阴极射线示波器[已作废]
发布时间：2004-01-09
实施时间：2004-01-09
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[JY 0012-1990] 磁针[已作废]
发布时间：2004-01-09
实施时间：2004-01-09
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发布时间：2004-01-09
实施时间：2004-01-09
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[JY 0014-1990] 左右手定则演示器技术条件[已作废]
发布时间：2004-01-09
实施时间：2004-01-09
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