From 1994 to 2008, observation data of atmospheric radiation was absent at a rate of 4.7% a year, and relatively more data was absent before 2000.

  • 1994-2008年大气辐射观测数据的缺测率平均在4.7%/年,但是2000年之前缺测相对较多。

  • 互联网摘选 2025-01-19 23:23:10

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