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本文以连续多年的检定结果为依据，对国家一级标准物质ＧＢＷ１３３０５可见光区透射比标准滤光片的长期稳定性进行了考察。结果表明该滤光片的长期稳定性是可靠的，量值准确。
In this paper, based on the test results of successive years, the long-term stability of the standard transmittance of GBW13305 in the visible region of the national standard was investigated. The results show that the long-term stability of the filter is reliable, accurate value.