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[ZB Y 343-1985] 大地测量仪器 三脚架[已作废]
发布时间：1989-07-01
实施时间：1989-07-01
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[GB/T 1146-1989] 水准泡[已作废]
发布时间：1989-03-31
实施时间：1990-01-01
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[GB/T 10049-1988] 光学径纬仪 技术条件[已作废]
发布时间：1988-09-10
实施时间：1989-07-01
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