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[GB 3412-1982] 电阻比电桥[已作废]
发布时间：1983-10-01
实施时间：1983-10-01
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发布时间：1983-01-01
实施时间：1984-06-01
本标准适用于准确度等级为0.0001~0.1〔1ppm~1000ppm(百万分之几)1×106~1×..
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发布时间：1983-01-01
实施时间：1984-06-01
本标准适用于具有固定比例，额定输入电压高达1.5kV和等级指数为0.1[1000ppm(百万分之几)..
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